The Facts

• A series of "coordinated" arson attacks broke out on Friday on three of France's four high-speed rail lines, disrupting the travel plans of over 1M weekend commuters ahead of the opening ceremony for the 2024 Summer Olympics in Paris.

• Prime Minister Gabriel Attal called the fires "acts of sabotage," with prosecutors in Paris opening a criminal investigation. The chief executive officer of SNCF, a French rail company, said that the fires were mostly set in pipes that contained cables needed for signaling.

• Service on one line has been running at normal levels while others have only seen partial resumption, with SNCF saying that repairs will need to continue over the weekend. Eurostar has said that journeys will be 1.5 hours longer due to the disruption, while SNCF advised travelers to postpone travel plans.