Dozens killed in Nice lorry attack - video

Forensic officers stands near a truck with its windscreen riddled with bullets, that plowed through a crowd of revelers who'd gathered to watch the fireworks in the French resort city of Nice, southern France, Friday, July 15, 2016. At least 80 people were killed before police killed the driver, authorities said. (AP Photo/Claude Paris)

A fireworks display on Bastille Day along the French Riviera turned bloody in what is now being investigated as an extremist attack.