French train crash: Rescue workers comb Bretigny-sur-Orge site

An investigation has begun into a train crash at Bretigny-sur-Orge, south of Paris, in which six people died.

The intercity train had just left Paris and was heading towards Limoges when it derailed, crashing into a station platform and injuring at least 30 people.

The train and platforms were crowded at the start of a holiday weekend.

The BBC's Chris Morris reports from the scene of the crash.