France train crash: Scene resembles a 'post-apocalyptic nightmare'

French President Francois Hollande has called for "much more" to be done to maintain the rail network, in a Bastille Day interview two days after a major train accident near Paris.

Investigations continue into France's worst rail disaster for 25 years.

Six people were killed when a train derailed south of Paris, on Friday.

Anna Holligan reports from the scene of the derailment.