On Sunday, NBC News reported that Marines were injured during an Iranian cruise missile attack while transiting the Strait of Hormuz on Sept. 14. The network’s sources said the Marines were not on a U.S. Navy ship, but they did not identify which vessel they were on. However, a former Royal Mail vessel that at one point was being converted into a floating armory stands out as a strong possibility.

While much remains unclear about the Sept. 14 incident, there was only one vessel known to have been struck that day, according to the United Kingdom Maritime Trade Operations (UKMTO) and a maritime security official we spoke with. The ship was eventually identified by several maritime media outlets as the M/V St. Helena. Again, the St. Helena’s involvement remains unconfirmed, but the ship’s interesting background is of particular note.

“Eight U.S. Marines were injured two weeks ago when an Iranian cruise missile attacked the ship they were operating on in the Strait of Hormuz,” NBC reported, citing three U.S. officials. “The Marines were not seriously injured, but they sustained smoke inhalation and possibly traumatic brain injuries, as they had symptoms of concussions, such as headaches, the officials said.”

“The Marines, seven of them enlisted and one officer, all returned to duty soon after the Sept. 14 attack, the U.S. officials said,” according to the network. “The officials said the Marines were operating as part of a battalion landing team during the Iranian anti-ship cruise missile attack.”

TWZ cannot independently confirm that Marines were on board the St. Helena or that they were injured. We reached out to the Pentagon and U.S. Central Command (CENTCOM) for more information. The Pentagon referred us to CENTCOM, and CENTCOM declined comment.

The incident took place amid an uneasy truce between Iran and the U.S. broken up by sporadic Iranian attacks on ships transiting the Strait of Hormuz. At the same time, the U.S. military is enforcing a blockade on Iranian ships, during which it has struck several for trying to bypass that effort as well as in retaliation for Iranian attacks on shipping. Negotiations between Washington and Iran have ebbed and flowed, and U.S. President Donald Trump is once again mulling a choice between continuing talks or renewing large-scale attacks.

As we noted earlier in this piece, after the vessel was struck, several maritime industry trade publications identified it as the St. Helena.

“Iran has attacked a historic former British Royal Mail passenger ship in the Strait of Hormuz,” TradeWinds News reported on Sept. 15, a day after the incident. “Maritime security sources identify the 6,800-gt St Helena (built 1989) as the latest vessel to be hit by an ‘unknown projectile’ in the war-torn waterway. The attack was reported late on Monday, according to UK Maritime Trade Operations, which cited a ‘verified source’ for the incident without identifying the vessel.”

“UKMTO has received a time late report of an incident within the Strait of Hormuz,” the organization reported on Sept. 15, citing an incident that took place a day earlier. “A verified source has reported that a vessel has been struck by an unknown projectile.”

“There is no reported damage or environmental impact,” UKMTO added. “Authorities are investigating.”

UKMTO WARNING 135-26

Click here to view the full product https://t.co/VWOyM2oLdj#MaritimeSecurity #MarSec pic.twitter.com/Dfppt86s9b

— UKMTO Operations Centre (@UK_MTO) September 15, 2026

According to Lloyd’s List, the ship was being operated by the Ambrey maritime security firm at the time it was struck. Ambrey declined to comment. 

Shipping expert Sal Mercogliano and open-source investigator Tom Bike were among those suggesting the St. Helena could have been the vessel at the heart of the NBC report.

So piecing together the evidence it appears that the US may have converted St Helena into a armed merchant cruiser.

The Marines looked at putting Armed Guards on board commercial ships three years ago as reported by @USNINews.

Add modular/containerized weapon systems,… https://t.co/48lJ1BDMfs

— Sal Mercogliano (WGOW Shipping) (@mercoglianos) September 28, 2026

Exactly what the St. Helena was doing at the time it was struck is unclear; however, the ship has had a very unusual past.

The vessel entered into service in 1990 and “sailed between Cape Town, South Africa and Saint Helena and Ascension Islands, carrying both passengers and cargo, some of which was Royal Mail, earning her the rare RMS designation,” according to Cruise Arabia and Africa.

The St. Helena was Britain’s last working postal ship, according to Maritime Executive. After it was retired in 2018 because it was no longer needed for that function, things got really interesting.

Two different organizations took over the vessel, including, as we noted earlier in this story, a company that was planning to use it as a floating armory in the Middle East.

“Renamed MNG Tahiti, the 103-meter (340-foot) ship is being readied by her new owner MNG Maritime to become a floating armory working in the Gulf of Oman,” Maritime Executive wrote on April 22, 2018. “She will deliver security guards and weapons to vessels sailing through the region and is expected to be operational in her new role in the next few months.”

It is unclear what happened to that plan. However, two years later, an off-road racing series called Extreme E said that it “secured exclusive use of the former Royal Mail ship in 2018.” After that, the ship underwent “an extensive refurbishment process, which has included total overhaul of steelwork, engines, generators, propellers, interior and cabin space, and more, making it not only fit for purpose, but also as efficient as possible ahead of its new mission.” 

The ship was “specifically designed to transport all the infrastructure and equipment the Extreme E needs for their race weekends,” the organization stated. The plan was to have the ship serve “as its freight and logistics hub due to her versatility and ability to carry and unload a mixture of cargo, like all 10 of the championship’s ODYSSEY 21’s [electric off-road racecar], as well as team members and guests. This was also fit with a Science Laboratory so research can be conducted enroute to the race locations.”

Both the St. Helena and MNG Tahiti have the same international shipping identification number of IMO 8716306, according to the MarineTraffic website.

On Sept. 17, 2024, the St. Helena was put up for sale, according to Horizon Ship Brokers. The current ownership is unclear. We reached out to Horizon Ship Brokers for more details.

Last year, the saga of the St. Helena took a new turn. A company called Terra Nova Expeditions chartered the vessel for Antarctic cruises, but those plans were scrubbed last month because the vessel was stuck in the Persian Gulf and was no longer available for the Antarctic sailing season.

It was last tracked via its transponder near Dubai nearly two months ago, according to MarineTraffic.

While we can’t confirm that Marines were onboard when St. Helena was hit, Marines have been training for this exact mission set. USNI News reported in 2023 that a “force of 100 Marines, newly trained by Navy personnel,” stood ready “to respond, if ordered, to provide armed security aboard foreign commercial ships transiting the Strait of Hormuz.”

Those Marines were members of the 26th Marine Expeditionary Unit (MEU) embarked on the three-ship Bataan Amphibious Ready Group (ARG), USNI added at the time.

It is unclear if those plans are still in place and if Marines in the region have actually been ordered to provide armed security for foreign vessels sailing through or near the strait. Regardless, Marines could be quickly trained to take on this mission set and have drilled for ship boarding and searches for years, especially special operations and specially-tasked units. CENTCOM declined to comment when we asked if there are U.S. personnel embarking on commercial ships transiting the Strait of Hormuz.

At the same time, it is possible that the unique attributes of St. Helena made it a convenient host ship for sea base operations for U.S. forces in the region specifically for this crisis. Adapting commercial vessels for exactly this purpose has a long history around the Strait of Hormuz, as it was a central facet of the Tanker Wars during the 1980s, that saw U.S. forces operate from barges in the region. Today, commercial vessels remarkably similar to St. Helena operate in similar roles, especially in support of special operations and interdiction operations.

Once again, we have no idea what the ship’s mission was at the time of the incident and if Marines were simply helping it transit safely out of the Persian Gulf or something more, but the attack did expose the fact that individual Marines are more involved with activities in this tumultuous body of water than it may seem.

Contact the author: howard@twz.com.

The post Claims Swirl Around U.S. Marines Injured Aboard Mystery Vessel Attacked In The Strait Of Hormuz appeared first on TWZ.

The latest flare-up of fighting between the U.S. and Iran has seen American forces strike two Iranian oil tankers in retaliation for Tehran’s attacks on ships transiting the Strait of Hormuz. This new “tanker-for-tanker” targeting policy, first reported by Axios, marks a change from previous incidents where ships were only attacked for running the ongoing U.S. naval blockade on Iranian ports.

The two nations have resumed hostilities after a month-long pause in kinetic strikes against each other. The two Iranian tankers were struck in a round of attacks U.S. Central Command (CENTCOM) said it carried out Tuesday in response to “recent attempted attacks by the IRGC [Islamic Revolutionary Guard Corps] against commercial shipping in the Strait of Hormuz and against American service members.”

Iran, claiming several civilians were killed in the U.S. strikes, quickly followed those attacks by launching missile and drone barrages against U.S. facilities in Bahrain, Iraq, Jordan and Kuwait.

The new U.S. “tanker-for-tanker” policy of carrying out retaliation strikes on Iran’s fleet of oil transport vessels, was approved by Trump, Axios noted. The policy was designed to “further deter Iranian attacks on tankers that move through the strait.

“The Iranian government tankers were anchored off Iran’s coast north of the U.S. naval blockade line,” the outlet stated, citing anonymous U.S. officials. “U.S. drones launched missiles that hit their engine rooms.”

The attacks on the Iranian tankers were “part of a plan Trump and his senior aides have been considering in recent days to prevent Iran from rebuilding the radar and missile capabilities it needs to attack ships crossing the strait,” the outlet stated. “One U.S. official said the idea is to reduce the risk of Iranian attacks on oil tankers, U.S. Navy ships and Air Force aircraft — to ‘mow the lawn,’ as this person put it. A U.S. official told Axios on Tuesday that the new strikes degraded Iran’s attack capabilities in the strait and ‘bought at least a month’ of lowered threat levels for commercial ships.”

CENTCOM released a video after the conclusion of its Sept. 1 strikes that included what appears to be strikes on two separate vessels. One can be seen at about the 39-second mark of the video and another about 10 seconds later.  It’s not exactly clear from the video what kind of munitions were used, however, you can read more about how CENTCOM disabled ships trying to run the blockade here.

A CENTCOM spokesman declined to say if those ships were struck under a new policy and referred that question to “policymakers.” We have reached out to the White House for comment.

CENTCOM:

U.S. Central Command (CENTCOM) forces successfully completed a wave of strikes against Iranian military targets Sept. 1.

U.S. forces struck Islamic Revolutionary Guard Corps (IRGC) targets including air defense sites, radar systems, maritime assets and facilities, mine… pic.twitter.com/gbX4zP50oA

— Clash Report (@clashreport) September 1, 2026

The CENTCOM statement about those strikes makes no mention of oil tankers.

“U.S. forces struck Islamic Revolutionary Guard Corps (IRGC) targets including air defense sites, radar systems, maritime assets and facilities, mine laying capabilities, and communications sites,” the command stated on X. “The strikes follow recent attempted attacks by the IRGC against commercial shipping in the Strait of Hormuz and against American service members.”

Talking to Texas Lt. Gov. Dan Patrick, who runs the Lt. Dan podcast, President Donald Trump on Wednesday claimed that more than two dozen Iranian ships were destroyed in the U.S. attack; however he did not specify what kind or how.

“We now control the Strait of Hormuz. We control it,” Trump claimed. “Last night we took out 28 boats, 28 ships. We control it, they get nothing, and we took out ships.”

We reached out to the White House for clarification about what kind of ships Trump says were destroyed.

Trump on Iran:

We now control the Strait of Hormuz. We control it.

Last night we took out 28 boats, 28 ships. We control it, they get nothing, and we took out ships. pic.twitter.com/IsIavFSxC9

— Clash Report (@clashreport) September 2, 2026

Trump also took to Truth Social to suggest the Strait be named in his honor.

“Now that we have it under U.S.A. control, should we change the name Hormuz Strait to TRUMP STRAIT??? Like America itself, it would be ‘hotter’ than ever before!” the president proclaimed.

TRUMP: Suggests renaming Hormuz Strait “Trump Strait,” says it is under U.S. control pic.twitter.com/HCQx6YBYZO

— Trump Truths (@trumptruthsbot) September 2, 2026

Iran has struck several ships in recent days, including two on Sunday that were transporting Saudi Arabian crude oil.

The Saudi Arabian-flagged very large crude carrier (VLCC) Sidr “was struck by unknown projectiles about 16.6 nautical miles northeast of Khasab, Oman at about [11:52 PM local time Sunday],” Reuters reported, citing the Marisks ​maritime security firm. “Minutes later, the ​Liberian-flagged VLCC Senegal ⁠Prosperity was reportedly struck by three unknown projectiles approximately 17 nautical miles east of Khasab, Marisks said. All crew aboard were ​reported safe.”

The Saudis condemned the attack on the Sidr.

#Statement | The Foreign Ministry expresses the Kingdom of Saudi Arabia’s condemnation of the Islamic Republic of Iran’s targeting of the Saudi tanker (Sidr) while it was transiting the Strait of Hormuz, and resulted in fatalities among the tanker’s crew. pic.twitter.com/0EqcXkNzCf

— Foreign Ministry (@KSAmofaEN) September 2, 2026

On Wednesday, the Islamic Revolutionary Guard Corps (IRGC) also claimed without providing proof that two ships were struck by mines in the Strait. However, the Ambrey maritime security firm pushed back on that.

“There is no meaningful evidence showing that any vessel has been hit by a ship mine,” Joshua Hutchinson, a former Royal Marine Commando who serves as the Managing Director of Intelligence and Risk (and Chief Commercial Officer) at Ambrey, told us.

The IRGC announced that two oil tankers struck mines and came to a halt after catching fire. The IRGC also warned that harsher penalties await shipping companies that choose to follow US provocations instead of complying with Iran's maritime regulations

— IRNA News Agency ☫ (@IrnaEnglish) September 2, 2026

However, as we previously reported, concern over Iran’s continuing ability to mine the Strait of Hormuz sparked the U.S. to resume attacking Iran on Sunday. CENTCOM told us it struck Iranian rocket launchers preparing to fire naval mines into the Strait of Hormuz. While the command did not provide recordings of that attack, Iran has previously introduced a system using what are said to be Fajr-5 rockets to launch mines, representing a dangerous new threat to shipping, which you can read more about in our initial report here.

“Strait of Hormuz transits remain contested and high risk, however, daily in- and outbound transits continue,” Ambrey stated in its latest security assessment. “Iran continues to seek control over Strait of Hormuz transits, while the US facilitates transits along the Omani coastline. Transits through the Transit Separation Scheme are not advised, despite the recent statement of the TSS having been cleared of mines.”

The alternatives “continue to be a northern route in coordination with Iranian authorities and a southern route facilitated by US forces,” Ambrey added. “On 24 August, the US Office of Foreign Assets Control updated their guidance in relation to US sanctions against Iran, expressly highlighting the risk of non-compliance if coordinating with Iranian authorities ‘including by accepting insurance or other services or responding to information demands for guarantees of safe passage, even if there is no associated payment or other exchange of value for these services.’” 

The U.S.-facilitated route “remains available to international shipping, with a layer of military support against attempted attacks against transiting vessels,” Ambrey noted. “However, Iran has continued to interfere with shipping on this route via VHF threats as well as Unmanned Aerial Vehicle and missile launches.” 

The renewed strife on the Strait has oil prices rising again. The per barrel price for Brent Crude was up to more than $95 on Wednesday, according to OilPrices.com. It had been $87.50 before the U.S. renewed attacks last week.

The Latest

Iran claimed that at least five people were killed and several others injured while attending a wedding reception during the CENTCOM strikes. Iranians called the incident a “war crime.”

“The truth of this unlawful war of choice – and the true face of the war crime – is in Sirik, where a wedding ceremony was brutally bombed as part of America’s desperate struggle to conceal its failure, not in AI-generated videos portraying American officials as triumphant heroes,” Iran Foreign Ministry spokesman Esmaeil Baqaei stated on X. 

The truth of this unlawful war of choice – and the true face of the war crime – is in Sirik, where a wedding ceremony was brutally bombed as part of America’s desperate struggle to conceal its failure, not in AI-generated videos portraying American officials as triumphant heroes.… pic.twitter.com/7GlHxE9oP1

— Esmaeil Baqaei (@IRIMFA_SPOX) September 2, 2026

TWZ cannot independently confirm that; however, remnants of an AGM-84H/K Standoff Land Attack Missile–Expanded Response (SLAM-ER) were reportedly found near the building where the wedding took place, according to open-source investigators.

“Weapon remnants said to have been recovered from tonight’s strike on a wedding ceremony in Kuhestak, Iran, have been identified by @Easybakeovensz [weapons technical analyst Trevor Ball] as SLAM-ER components,” New York Times Visual Investigations journalist Christiaan Triebert stated on X. “Manufacturer Boeing touts this cruise missile as the ‘most accurate’ weapon in the U.S. Navy’s inventory.”

Additional photos and video of the weapon remnants, including the thermal battery and a component with a visible part number. Some unidentified, may not be exclusive to SLAM-ER. Via Hamid Kasiri, who appears to be a teacher in the area and public figure. pic.twitter.com/n5e9dfv0d6

— Christiaan Triebert (@trbrtc) September 2, 2026

The wedding took place about 430 feet from an Iranian communications tower, CNN Visual Investigations Reporter Thomas Bordeaux noted on X. The tower was the likely target.

Geolocation of a building in a residential area in Kuhestak, Iran, said to have been struck by the US while it was hosting a wedding. The building is 430 feet from a comms tower, which was also struck.

Building: 26.80297, 57.02492
Tower: 26.80231, 57.02377
cc: @GeoConfirmed pic.twitter.com/QLzMGczb7W

— Thomas Bordeaux (@ThomasBordeaux7) September 1, 2026

CENTCOM spokesman, Navy Capt. Tim Hawkins, told us the command “is aware of the reports, which originated from Iranian state media, and we are looking into them.”

“The U.S. military never targets civilians, unlike the IRGC,” he added.

Hawkins also pushed back on Iranian claims that the IRGC killed a large number of U.S. troops in an attack on Camp Titin, a small U.S. Marine base on the Gulf of Aqaba coast.

“Not true, it’s an outright lie,” Hawkins told us when we asked about the Iranian claims of inflicting casualties on U.S. forces during their recent retaliation strikes. “All American personnel are accounted for.”

Iran’s IRGC says it launched a heavy barrage of ballistic missiles at Camp Titin, a base used by U.S. Marines near Aqaba in southern Jordan, in retaliation for the U.S. attack on a wedding ceremony in Sirik.

➤ The IRGC described the strike as the second wave of its… pic.twitter.com/HCyic7dpVm

— Drop Site (@DropSiteNews) September 1, 2026

Iran also claimed to have launched attacks on US facilities in Erbil province in northern Iraq, Sheikh Isa Airbase, which hosts US forces, in Bahrain, Prince Hassan airbase in Jordan and the headquarters and residence of the American commander of the Ali Al Salem airbase in Kuwait.

BREAKING | Iran Strikes U.S. Base in Kuwait

Iran’s IRGC claims it launched a combined missile and drone attack on U.S. facilities at Ali Al Salem Air Base in Kuwait.

The IRGC says the U.S. commander’s headquarters and accommodation, along with drone facilities,… pic.twitter.com/TMo13TVbWp

— IRAN IRGCC (@IranIRGCC) September 2, 2026

Jordanian officials said their air defenses shot down 10 Iranian ballistic missiles and three fell safely on unpopulated areas.

#Jordan – The @ArmedForcesJO report that the Kingdom was targeted by a missile attack originating from Iranian territory in the early hours today. Air defense systems engaged 13 ballistic missiles that entered Jordanian airspace, intercepting and destroying 10 of them. The… https://t.co/3zCIEjrIxH

— Dana Zureikat Daoud دانا زريقات (@DanaZkat) September 1, 2026

Iran’s military used Kheiber Shekan medium-range ballistic missile (MRBM) “extensively in strikes on the U.S. naval hub in Bahrain and other American bases during the six-month war with the U.S. and Israel,” USA TODAY reported, citing “the Iranian government and confirmed in USA TODAY interviews with former U.S. military and intelligence officials and weapons analysts.”

“Some of those analysts believe Iran used [these] missiles in the July 17 strikes on the U.S. Muwaffaq Salti Air Base in Al-Azraq, Jordan that killed three American service members,” the outlet added. Iran itself has also made that claim, “according to official government statements obtained by USA TODAY.”

On Aug. 31, an Iranian state-run outlet claimed Tehran used Kheibar Shekan missiles to hit Muwaffaq Salti − and the King Hussein air base in Jordan − in response to U.S. military attack on Iran’s Larak Island the previous night, USA TODAY proferred.

The Kheibar Shekan is a two-stage, solid-propellant, truck-launched MRBM that Iran first unveiled on Feb. 9, 2022. A third generation of the Fateh family of ballistic missiles, Iran claims it has a maximum range of 1,450 kilometers (900 miles). These missiles provide high terminal maneuverability and/or high speeds specifically intended to reduce their vulnerability to missile defense interceptors.

6/ DoD says its defenses work virtually all the time and its forces ‘remain fully operational.’ But experts – including former CIA, Army, DIA and Marine intelligence officials – told me say enough missiles are getting through to do real damage. Full story: https://t.co/7ykaUnEHEG

— Josh Meyer (@JoshMeyerDC) September 1, 2026

Russia “has been secretly helping Iran develop advanced supersonic cruise missiles in one of the most significant known transfers of strategic military technology from Moscow to Tehran,” Financial Times (FT) reported.

“The multiyear covert program, codenamed C430L, has enlisted some of Russia’s most experienced missile specialists to help Iran develop a new class of weapon capable of threatening US aircraft carriers and other warships in the Middle East,” the publication added. “An FT investigation uncovered the program, which began in 2023 and continued into the US-Israeli war against Iran, through leaked Russian correspondence, travel records and analysis of military patents.

The main purpose of C430L “is to help Iran to develop a ramjet propulsion system, an engine that allows a cruise missile to sustain flight at several times the speed of sound,” FT added. “Missile and military experts said the technology was almost certainly intended for anti-ship and land-attack cruise missiles.”

“This is the transfer of a highly strategically sensitive military technology from Russia that the Iranians have wanted to acquire for decades,” said Fabian Hinz, an expert on Iranian missiles and senior analyst with Conflict Armament Research, a UK-based weapons-tracing organization. “A program like this would require political clearance from the very top in Russia.”

The weapon system, or at least the impetus for it is, is possibly P-800 Oniks (SS-N-26). Russia has been using these against Ukraine since the early days of the all-out war and has exported the weapon in various configruations.

NEW: Russia has been secretly helping Iran develop advanced supersonic cruise missiles in one of the most significant known transfers of strategic military technology from Moscow to Tehran.

with @MilesMJohnson @charles_clover https://t.co/01SxsOypLq

— max seddon (@maxseddon) September 1, 2026

After numerous Iranian attacks on Bahrain, the U.S. evacuated ships and troops and no return date is on the horizon, according to the Chief of Naval Operations.

“We’re not getting back in there anytime soon,” Adm. Daryl Caudle said during a recent worldwide town hall meeting with sailors. “I just want to be completely honest with that. But we’re working real hard to develop a scheme of maneuver in order for you to get your things.”

JUST IN: US NAVY COMMANDER SAYS US FORCES WILL NOT RETURN TO BAHRAIN BASE pic.twitter.com/xqNQhNLQWe

— Sulaiman Ahmed (@ShaykhSulaiman) September 1, 2026

Iranian hackers have “targeted not only U.S. water systems but also America’s telecommunications, energy and other infrastructure in recent weeks,” NBC News reported, citing four people with access to government and industry information about cyberthreats.

The attempted cyberattacks “have focused on automated systems connected to the internet and so far have not been successful, the sources said,” according to the network. “But they underscore Iran’s readiness to retaliate against the U.S. beyond its interests in the Middle East. The U.S. and Israel have launched airstrikes on Iranian bridges, fuel depots and other infrastructure since the war began in February.”

A Telegram channel that presents itself as a voice for Iranian cyber operations “declared Sunday that it would target energy, water and telecommunications sectors in the U.S., saying its earlier warnings to halt attacks on Iran had gone unheeded,” NBC continued.

“Soon, the United States will witness unexpected and critical events in the energy, water, and telecommunications industries,” the group, APT IRAN, said on Telegram.

Iranian hackers have targeted not only US water systems but also telecommunications, energy and other infrastructure in recent weeks, NBC News reported on Wednesday, citing four people with access to government and industry cyberthreat information.

The attempted cyberattacks… pic.twitter.com/nqrTXrooRb

— Iran International English (@IranIntl_En) September 2, 2026

That’s it for now. We’ll update this story with new details when they emerge.

Contact the author: howard@twz.com

The post Iranian Oil Tankers In The Cross Hairs Of New U.S. Campaign appeared first on TWZ.

“The Strait of Hormuz cannot be separated from the broader regional conflict,” Rezaei said.

The post Iran links Hormuz Strait reopening to end of Mideast wars appeared first on BOL News.