British counter-terrorism police are investigating a security breach at RAF Molesworth in Cambridgeshire after two Latvian nationals were found inside the military installation. The arrests come amid heightened security concerns following a separate suspected terrorist plot targeting RAF Fairford, which prompted the withdrawal of American bombers.

Two Latvian nationals have been arrested in Britain on suspicion of entering a restricted military installation for purposes potentially harmful to national security. The men were discovered inside RAF Molesworth, a sensitive military facility in Cambridgeshire that houses American and NATO intelligence operations, during the early hours of Thursday, 8 October.

The suspects, aged 36 and 32, are both Latvian citizens residing in the United Kingdom. According to an official statement issued by the Metropolitan Police, they were initially detained on suspicion of trespassing and criminal damage before being arrested under the National Security Act 2023.

The incident follows a separate investigation into a suspected terrorist plot near RAF Fairford in Gloucestershire, where American strategic bombers had been deployed. British counter-terrorism officers have emphasised that there is currently no evidence connecting the two cases.

Security breach discovered during routine patrol

The investigation began at approximately 10pm on Wednesday, 7 October, when Ministry of Defence Police officers patrolling RAF Molesworth discovered an abandoned vehicle near the installation’s perimeter.

Officers from Cambridgeshire Constabulary joined the search and subsequently identified a small breach in the security fence. At approximately 2am on Thursday, the two men were located inside the restricted area and taken into custody.

The suspects were initially questioned over alleged trespassing and criminal damage. However, investigators subsequently invoked Section 4 of the National Security Act 2023, which covers entering, approaching or inspecting prohibited locations for purposes prejudicial to Britain’s safety or interests.

The legislation carries a maximum sentence of 14 years’ imprisonment upon conviction. Neither man has been publicly identified, and police have not disclosed evidence establishing their alleged intentions or any connection with a foreign intelligence service.

Officers have also searched two addresses in the Peterborough area. The abandoned vehicle was recovered and examined by specialist explosive ordnance disposal personnel after concerns arose during initial inspections.

As a precaution, police established a cordon affecting roads around Glatton, including part of the A1. Specialists subsequently found nothing of concern, allowing the restrictions to be lifted.

Intelligence facility serving American and NATO operations

RAF Molesworth is not an ordinary operational airfield. Although designated as a Royal Air Force station, the installation accommodates intelligence facilities supporting American military operations and NATO.

Among the organisations associated with the site is the NATO Intelligence Fusion Centre, which contributes to intelligence collection, assessment and information-sharing between allied military authorities. The installation also supports American military intelligence activities relating to operations in Europe and Africa.

The presence of these facilities makes Molesworth a sensitive location, where unauthorised access raises questions extending beyond conventional trespassing. Investigators will seek to establish how the men entered the compound, why they were there and whether they attempted to approach or examine restricted equipment or infrastructure.

Separate investigation at RAF Fairford

The arrests come less than two weeks after British police detained seven men in connection with a suspected terrorist plot involving RAF Fairford, another British installation used by the United States Air Force.

The Fairford investigation began on 27 September after suspicious activity was reported near the base. Police subsequently investigated possible offences involving explosives and preparations for terrorist acts. Those arrested in connection with that investigation have since been released on bail.

The incident was followed by the withdrawal of American bombers from Fairford. President Donald Trump subsequently referred to security threats affecting the installation, raising further questions about the protection of American military assets stationed in Britain.

Commander Helen Flanagan, head of Counter Terrorism Policing London, which is leading the Molesworth investigation, cautioned against drawing conclusions about the relationship between the two cases.

She said investigators had found nothing so far suggesting a connection with the Fairford incident and were continuing to examine possible motives.

British authorities have not publicly identified a foreign state or organisation as being responsible for the Molesworth breach.

The two Latvian nationals remain in police custody while investigators continue examining the circumstances surrounding their presence at the installation. The inquiry involves Counter Terrorism Policing, the Ministry of Defence Police and Cambridgeshire Constabulary.

The investigation is taking place against a wider background of security concerns involving European military facilities. Latvia itself reported an armed border provocation and sabotage of surveillance infrastructure near Belarus earlier this week, although there is no evidence linking that incident to the arrests in Britain.

For British investigators, the immediate task remains establishing whether the Molesworth intrusion was an isolated security breach or involved an intention to compromise military operations or intelligence infrastructure.

A Ukrainian Sargan-3000 sea drone shot down a Russian Shahed flying on a mesh radio network, Ukraine's Navy reported on 7 October. Ukrainian sea drones have downed Russian aircraft before, but with missiles. This one used a machine gun.

Russia has been hitting Odesa with air attacks that come in waves with short gaps between them. Guarding the sky over water is harder than over land. Since fall 2025, Russia has also used mesh radio networks to reroute Shaheds mid-flight and dodge Ukrainian air defenses. That leaves Ukraine needing more ways to meet these drones out at sea, before they reach its ports and coast.

A Shahed steered by radio

A mesh-network drone passes its control signals along a chain of radio relays, drone to drone and on to ground antennas. That lets a Russian operator steer it in flight.

In May, Serhii "Flash" Beskrestnov, then a Defense Ministry adviser, said only about 5% of Shaheds had got through in a recent Russian strike, and predicted that Russia would answer with jet-powered versions and strikes near the border. By July, Ukraine was testing jamming against mesh-controlled jet Shaheds, he said.

The Sargan-3000 fired its Protector remote weapon station, Militarnyi reported. The station is a remotely operated 12.7-mm (50-caliber) machine gun with electro-optical sights. The outlet added that the Sargan-3000 is designed for combat missions far from Ukraine's coast.

Built for the open sea

Ukraine's Navy took the Sargan-3000 into service in April 2026, according to Militarnyi. The drone boat has a combat radius of up to 1,600 km. It moves at 40–55 knots and carries up to 450 kg of payload.

In September, a Sargan-3000 sank a Russian uncrewed boat with machine-gun fire. Militarnyi called it the first battle between uncrewed sea platforms in history. Analyst H.I. Sutton wrote that the boat carried a Protector made by Norway's Kongsberg. That is the same weapon station named in the October shootdown. Sutton added that Russian attack sea drones work closely with Shaheds, which can relay the boats' mesh radio signals.

Russian forces appear to use AI to plan air attacks and recognize targets amid raids on Ukrainian cities. This may include recent air attacks on Odesa that have come in waves with short gaps, Deputy Air Force Commander for Air Defense Colonel Yurii Cherevashenko says, Ukrinform reports.

Russia has already equipped its jet-powered Geran-4 drones with machine vision, allowing them to recognize and track targets on their own in the final seconds of flight. Recently, a single jet drone hit a locomotive in Odesa Oblast in late September and killed two railway workers.

The scale of Russia's AI use is hard to measure, Cherevashenko continues, but Ukrainian specialists already see its elements in how attacks are organized. The long, wave-by-wave strikes on Odesa would be far harder to plan and coordinate without it, he believes.

"Russian forces use AI to lay out attack routes and to recognize targets," Cherevashenko says, framing it as his own assessment rather than a confirmed fact.

The sea is harder to defend than land

Odesa Oblast is home to the biggest port in Ukraine, "Southern". Protecting it is a challenging task as guarding the airspace over water is tougher than over land, Cherevashenko says. Some air defense assets do not perform as well at sea, and in some cases, crews can intercept a target only as it approaches.

Weather adds to the problem, with storms and fog, while the open sea gives Russia more freedom to choose drone routes and launch points. To protect ports and the coast, Ukraine uses drone motherships, platforms that carry other drones aloft to extend their flight time and keep watch over set areas.

Ukraine answers AI with AI

Ukraine is also building its own AI for air defense. Automated turrets using machine vision now help counter Russian drones. According to Army Media, the Air Force says such turrets have scored their first shoot-downs, including of Geran-5 jet drones, with one soldier saying 50 rounds were enough to bring down a Geran.

Ukraine's Defense Ministry is going further. In late September, it unveiled an AI system called SPECTR, built by its A1 Artificial Intelligence Center and already in testing with several combat units, to analyze battlefield data, predict Russian moves, and suggest options to commanders.