The U.S. Embassy in France is warning Americans to steer clear of violent protests as unrest sparked curfews and raised concerns about travel disruptions across the country.

The riots — fueled by a range of grievances, including rising living costs and mass migration — have been reported across France, with protests reported in cities including Paris, Lille and Lyon. Authorities have imposed localized curfews as a result.

The embassy said in a Monday statement that partial curfews had been introduced in several French cities, with additional restrictions possible.

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"Following the October 17 protests that turned violent, media report the Prime Minister’s office introduced partial curfews for Monday, October 19 and Tuesday, October 20 in several cities across France, including Lille," the embassy said.

"Media report more curfews may follow for parts of Paris and in prefectures across the country, and that scattered protests could continue."

In Paris, authorities also imposed overnight curfews in areas including Place de la République and the Les Halles Shopping District, according to The Associated Press (AP).

Riot police deployed tear gas across the streets near Place de la République in an attempt to disperse crowds during the escalating street battles, the same source reported. 

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The gas quickly mixed with heavy, acrid smoke from torched vehicles and street fires, according to Reuters.

The chaos forced Dutch entrepreneur Tije De Boer, who was visiting Paris with his children, to evacuate his hotel at Place de la République. 

De Boer described the scene to Reuters as "like a war zone" following the intense protests that rocked the French capital on Oct. 17.

"It's like a war zone here," De Boer said, according to the Reuters report.

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Major tourist attractions have also been impacted.

The Louvre Museum in Paris was forced to close Monday after protesters blocked its entrances, Fox News Digital previously reported.

Travelers visiting Paris are being advised to avoid popular protest gathering spots, including Place de la République, Place de la Bastille and Place de la Nation, along with major thoroughfares such as Boulevard Voltaire, which are frequently used for demonstrations, according to The Times of London.

Outside the capital, Lyon's tourism office at Place Bellecour was vandalized and set ablaze during the Oct. 17 demonstrations, according to city officials. 

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Visitor services have since been relocated to a temporary facility on the same square.

The violence also spread to other French cities, including Limoges, where the historic town hall was set ablaze during the Oct. 17 unrest, according to numerous reports. 

In Bordeaux, the mayor reported that as many as 100 stores had been looted during the demonstrations, Reuters reported.

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Despite the violence, flights to and from Paris have largely continued operating, according to flight data reviewed by Fox News Digital.

However, travelers could still face disruptions on the ground, with the embassy advising Americans to check for Metro station closures and other transportation interruptions before heading out.

The embassy also urged travelers to confirm flight schedules directly with their airlines and allow extra time to reach their destinations.

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"Monitor media and local resources for updated information and curfews in your area," the statement added. "Plan alternative routes and allow extra travel time for travel."

Fox News Digital reached out to the State Department for comment.

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Fox News Digital's Jessica Mekles and Reuters contributed reporting.

A passenger flight was forced to make an emergency landing shortly after takeoff following reports of a strange odor on board that left travelers fearing for their lives.

An American Airlines flight departed from St. Louis Lambert International Airport on Oct. 17, bound for Philadelphia, before turning back to the airport.

Gary Leff, a Texas-based aviation expert who founded the blog "View from the Wing," told Fox News Digital that engine oil entering an aircraft's air supply could potentially explain the odor, although the cause of the incident has not yet been confirmed.

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"When that happens, you can get smoke, you can get vibration, you can get loud noises. It can also wind up making people ill," Leff said.

FlightAware data reviewed by Fox News Digital showed that the plane was in the air for 34 minutes before landing back at St. Louis Lambert International Airport.

In a statement to Fox News Digital, American Airlines confirmed that the flight returned to St. Louis shortly after takeoff following a reported odor on board.

The airline said the aircraft landed safely and was taken out of service for inspection by its maintenance team.

The flight had already been delayed roughly two hours following a reported engine issue before passengers experienced trouble in the air, according to a couple who spoke to local outlet First Alert 4.

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The passengers — Tessa and Mark Springer of Waterloo, Illinois — were traveling to Pennsylvania for work when they heard a troubling noise coming from the back of the plane before takeoff.

"We heard just this really horrible noise coming from the back of the plane. It was like ... real loud buzzing, kind of [a] grinding sound," Mark Springer said.

Mark Springer said the pilot then announced there was a mechanical issue.

"The pilot comes back on and says, ‘Uh, there’s a problem with the engine on the airplane,’" the passenger added. "'We can’t get it started.'"

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After the delay, the plane finally departed. But about 15 minutes into the flight, passengers experienced a sudden jolt that sent them lunging forward, according to Mark Springer.

"All of a sudden, the plane just felt like it hit a ... like in a car, when you slam on your brakes. ... Everybody kind of lunges forward like this," he said.

"And then, maybe a minute later, the plane just kind of goes boom and drops. … All of the oxygen masks fall. And we just kind of looked at each other like, is this serious? Is this real?" added Mark Springer.

Tessa Springer recalled fearing for her life as the plane turned back toward the airport, telling First Alert 4 she was terrified she would die.

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She texted her children, "Problem on our plane, love you guys," per the outlet.

"I was like, we’re going to die," Tessa Springer said.

The couple said that once they landed, they evacuated the plane by jumping from its wing, with fellow passengers helping catch one another as they made their way to the ground.

"I don’t think I’ll ever be able to get on another airplane ever again," Mark Springer said.

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Despite the frightening ordeal, Leff of "View from the Wing" said a lengthy delay due to a mechanical issue does not necessarily indicate that a flight is unsafe.

"Part of that delay is diagnosing, part of it's addressing it and part of it's getting all the paperwork right and just doing all the final readbacks and rechecks to make sure that everything is safe for departure," Leff said.

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"A long delay in and of itself is not a safety concern," he added.

Leff also noted that aircraft are equipped with multiple safety systems and emergency procedures designed to protect passengers when problems arise.

"There are tremendous redundancies of systems and emergency procedures in place, such that the cockpit crew immediately reacted, responded and got everyone on the ground and off the aircraft to safety," Leff said.

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"It's certainly not something that you want to go through — but even when something goes wrong, that doesn't mean that things end badly at all," he added.

Officials have disclosed the causes of death for three festivalgoers at this year's Burning Man event in Nevada, weeks after the annual gathering was rocked by multiple fatalities.

The causes of death ranged from cardiovascular disease to drug toxicity, according to local outlet KOLO 8 News, citing information from the Washoe County Regional Medical Examiner's Office.

Burning Man, held annually in Nevada's Black Rock Desert, ran from Aug. 30 through Sept. 7 this year, with all three deaths occurring during the festival.

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One man, 62, of Santa Monica, California, was pronounced dead at the festival's Rampart Medical Center on Sept. 3 after suddenly collapsing, KOLO 8 reported.

His cause of death was determined to be hypertensive and atherosclerotic cardiovascular disease.

Another man, 51, of Truckee, California, died in an ambulance on Sept. 4 after experiencing chest pain at the festival. 

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His death was linked to methamphetamine and MDMA toxicity, heart disease and Type 2 diabetes, with chronic methamphetamine use also contributing, the same outlet said.

A third man, age 60, of Yuma, Arizona, was found dead in his vehicle.

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He was later determined to have died from cocaine and methamphetamine toxicity, with cardiovascular disease contributing, according to KOLO 8.

Fox News Digital reached out to the Washoe County Regional Medical Examiner's Office for additional information.

The festival draws tens of thousands of participants who gather to build a temporary city known as Black Rock City.

The festival emphasizes communal effort, self-reliance and self-expression, according to the organization. 

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The event culminates in the burning of a massive wooden effigy known as "the Man."

In a statement earlier in September, Burning Man organizers expressed condolences to the families of those who died and said the three deaths initially appeared to be from natural causes.

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"The deaths of three Burning Man participants in 2026 all appear to be from natural causes, but we defer to the medical examiner for official determinations," the organization said.

"We encourage and ask that people focus on the contributions of the individuals lost and avoid speculation about the circumstances of their passing out of respect for the participants and their families."

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Fox News Digital reached out to Burning Man for additional comment.