Trains at all major Paris stations have been delayed after fires and at least 800,000 people have been affected.

Arson attacks on France’s rail network have taken place in what police say is a "massive attack to destabilize the railway system," hours before the Olympic Games begin.

Arsonists have attacked France’s high-speed rail network, paralyzing train travel to Paris for some 800,000 people across Europe, including athletes heading to the opening ceremony of the Olympic Games

Fires were set on three major train lines in the north and east of France in what French authorities are calling a massive, coordinated attack to destabilize the railway system.

Hundreds of migrants and homeless Parisians climbed aboard buses to be driven out of the city

With fewer visitors than Paris first predicted, there are still some travel deals available for the Olympics host city.

More than 35,00 police officers will be deployed each day for the Olympics, 10,000 soldiers will patrol the streets and France has called in help from more than 40 countries to help keep the city safe.

ABC News’ Maggie Rulli describes the tension felt after some disturbances emerged.

French authorities say a police officer has been wounded in a knife attack in Paris in the Champs-Elysees neighborhood

The 2024 Paris Summer Olympics are impacting airline earnings, but as tourists avoid the host nation now, travel experts predict possible deals afterwards.

Anne Hidalgo, the mayor of Paris, will swim in the Seine in a showcase of how clean the river is for the outdoor swimming events at the 2024 Olympics which opens in days.

As Paris gets ready to host the 2024 Olympic Games, the city's iconic Seine River has prompted safety concerns for athletes in marathon swimming and triathlon events.

French prosecutors say the man who stabbed a French soldier on foot patrol outside a big train station in Paris has been taken to a psychiatric hospital

French prosecutors say the man who stabbed a French soldier on foot patrol outside a big train station in Paris has been taken to a psychiatric hospital

Hundreds of people have carried the Olympic torch through the French capital for two days of celebrations before the Summer Games kick off at the end of the month

Paris hosted an extra-special guest for France’s national holiday Sunday

French sports minister Amélie Oudéa-Castéra has taken a symbolic dip in the Seine in a bid to ease concerns about water quality before the start of the Paris Olympics

ABC's Ines de la Cuetara reports from Paris that it's still unclear whether Olympic athletes will be able to compete in the Seine due to unsafe levels of bacteria in the water.

A fire broke out on Thursday on the spire of a cathedral in Rouen, France, local emergency officials said.

Fire officials said the blaze had been put out.

The towering spire of France's Notre Dame cathedral is nearly completely restored after the devastating fire of 2019.

With just five months to go until the beloved Notre-Dame de Paris Cathedral reopens, it's time to check how it looks. ABC News was granted rare access to Paris’ 800-year-old treasure.

ABC News foreign correspondent Tom Soufi Burridge discusses what the election result could mean for France.

After a strong result for France’s far-right in last week’s first round of voting, the winner in Sunday's round was France's left, an alliance of parties created specifically for this election.

The question remains whether the level of funding for Ukraine would change under a Rassemblement National government run by Marine Le Pen's party.

President Emmanuel Macron called the vote after his party suffered defeat in recent European elections to far-right nationalists. Final results are expected after the second round of voting.

Rihanna and A$AP Rocky stepped out together during Paris Fashion Week on Friday.

Macron said he is dissolving the National Assembly and calling a snap legislative election after his party suffered a heavy defeat in elections for the European Parliament.

ABC News' Andrew Dymburt speaks with Simon Kuper, author of “Impossible City,” about Paris' evolution over the past few decades and the city's preparations for this summer's Olympics.

Anti-terrorism authorities are investigating after the arrest of a 26-year-old man of Ukrainian and Russian descent who was hurt in an explosion at a hotel near Charles de Gaulle Airport.

France’s postal service is expected to raise quite a bit of dough after releasing a brand new scratch-and-sniff stamp that smells like a baguette.

A manhunt continued Wednesday for a fugitive dubbed "The Fly" and accomplices wielding machine guns who facilitated the convicted criminal's escape, authorities said.

Two officers were killed in a brazen ambush on a prison van and three officers are injured, two of them reportedly in serious condition.

Huge waves came crashing over a seawall in Saint-Malo, France, flooding a street as passersby looked on. Weather warnings were issued across Brittany as a storm brought strong winds to the region.

French diver Alexis Jandard says his back is fine — but his ego, not so much — after he slipped on the board while taking part in an inauguration ceremony ahead of the 2024 Summer Olympic Games.

The reconstruction of the French cathedral reached a major milestone after construction scaffolding began to come down.

The reopening will last from Dec. 8, 2024, to June 8, 2025.

The cathedral has been closed since an April 2019 fire brought down its steeple and destroyed its interior.

The Dixmude, a French helicopter carrier docked in Egypt, has been turned into a field hospital to treat some of Gaza's most severely wounded.

The activists were from "Riposte Alimentaire," a food-security group.

Two women opened thermoses and splashed soup on the famous Leonardo da Vinci painting, the food-security group behind the protest said.

Nearly four years after Notre Dame Cathedral in Paris caught fire, the efforts to rebuild are nearing their end as the gates are expected to open once again in December 2024.

The institution, Averroès school group in Lille, has denied claims about its funding and courses.

According to eyewitnesses, a man asked a German couple for a cigarette before killing one with a knife and running across a bridge where he attacked and injured two more people with a hammer.

The alleged attacker is a French national who has since been arrested, reportedly telling police he was fed up with Muslims dying in Afghanistan and Palestinian territories.

French police said a man known to authorities for having psychiatric issues attacked a couple with a knife, killing a German tourist.

ABC News medical correspondent Dr. Darien Sutton shares tips for spotting bedbugs, and how to treat them.

The infestation of bedbugs comes as Paris is preparing for the 2024 Summer Olympics.

Bedbugs are not new to Paris, but the issue has become widely publicized in recent weeks as the French capital prepares to host the 2024 Summer Olympics.

French authorities say two men jumped a set of security barriers while walking back down the Eiffel Tower on Sunday night and ended up spending the night in a restricted area in the Paris landmark.