At least eight people are reported dead in a train crash at Bretigny-sur-Orge, south of the French capital Paris.
The intercity train had just left Paris and was heading towards Limoges when it derailed, crashing into a station platform at about 16:00 GMT.
Passengers were said to be trapped inside the train and a local official said there were "many casualties".
French broadcaster BFM-TV, citing police, said at least eight people had died in the accident.
Local MP Michel Pouzol said some carriages were lying on their sides.
A police source quoted by Le Figaro website said the train had split in two for reasons that were as yet unclear.
Other media reports spoke of passengers being electrocuted and crushed.