Hollande , who said he 's traveled on the route before , announced three investigations -- a judiciary inquiry , an internal inquiry within SNCF and an inquiry that will be handled by the country 's transport ministry . NEW : At least six people were killed in the accident , France 's president says . Last two cars of train stopped , the railway company says . France 's national railways company says the derailment was an accident . The cause of the accident is being investigated , it says .
NEW : At least six people were killed in the accident , France 's president says . Last two cars of train stopped , the railway company says . France 's national railways company says the derailment was an accident . The cause of the accident is being investigated , it says .