PARIS, July 16. /TASS/. The Islamic State terrorist group (IS) undertook responsibility for the terrorist attack in France’s Nice on July 14, BFM TV said on Saturday.

"IS claims responsibility for the terrorist attack in Nice," the television channel said.

On Thursday night, a truck plowed at full tilt into the crowd on the Promenade des Anglais when thousands of people were about to go away after the festive fireworks on the occasions of Bastille Day.

A total of 84 people died and more than 200 others were wounded, many of them severely. France has announced a three-day mourning over the victims.