A new video has emerged of the truck which slammed into a crowd of revellers in Nice on Thursday, killing 84 people and wounding many others.

The amateur video was shot by an unknown tourist who was filming the fireworks show from the promenade. At one point the camera pans to one side and the white truck is seen driving down the pavement at speed and knocking people down.

The footage captured a young man, also filming the show on his camera, completely oblivious that the lorry was right behind him and about to hit. A loud thud seems to indicate that the man was run over. His fate is unknown.

A woman, probably an Italian, is heard shouting ‘Madonna’ over and over again.

31-year-old Tunisian-born Mohamed Lahouaiej Bouhlel was at the wheel of the lorry. He was shot dead by police moments later. ISIS claimed today that Bouhlel was one of its “soldiers.”

According to reports and the man’s father, however, Bouhlel was mentally unstable, violent and had little interest in Islam. French Interior Minister Bernard Cazeneuve later hinted that Bouhlel may have had a last-minute adoption of a more extremist worldview. "It seems he was radicalized very quickly," Cazeneuve said.