French authorities are investigating the derailment of a regional train in Normandy that injured 44 people on Friday, September 11, 2026. The train, operated by the national rail service SNCF, was carrying 186 passengers from Rouen to Caen when it left the tracks at approximately 7:45 p.m. near the town of Cléon. Police and prosecutors stated they are exploring the possibility of sabotage after a piece of rail was discovered on the track.
The incident occurred as the train was traveling at speed, causing one carriage to overturn onto its side and four others to derail. According to Cléon Mayor Melanie Delacour, the force of the derailment caused stones from the track bed to fly into the carriages and windows to shatter. Emergency services, including 140 firefighters and a helicopter, responded to the site under a mass-casualty response plan.
Among the 44 injured, an 18-year-old woman was evacuated by helicopter to Rouen University Hospital in critical condition. The remaining 43 passengers sustained what local media described as minor injuries. Rouen prosecutor Sebastien Gallois reported that initial tests on the train driver were negative. A spokeswoman for the French national police communications service (SICOP) said the piece of rail found on the track was "probably" linked to the crash, though the reason for its presence remains under investigation.
The scale of the incident involved a mass-casualty response that deployed 140 emergency personnel and specialized medical evacuation aircraft. For the passengers involved, the experience included what one witness described as violent jerks, shattering glass, and debris entering the cabins. Beyond the immediate physical injuries to 44 people—nearly a quarter of those on board—the event serves as a significant disruption to regional transit infrastructure in northwestern France.
What happens next depends on the findings of the ongoing probe by the Rouen prosecutor’s office and SNCF. Investigators are working to establish the origin of the rail piece found on the tracks. While rail authorities and police have launched formal investigations, no specific timeline for the restoration of full service on the affected lines has been reported. The priority, according to SNCF Reseau, remains the care of passengers followed by the restoration of safe operating conditions.