PARIS, July 15. /TASS/. Fifty people injured in a truck rampage on Bastille Day in Nice are in a critical condition, French President Francois Hollande said on Friday.

"Fifty people are in hospitals between life and death. In all, 84 people were killed," Hollande said.

A 31-year-old Franco-Tunisian man identified as Mohamed Lahouaiej Bouhlel drove a 25-tonne truck at full speed through the crowd who had gathered to watch the Bastille Day fireworks display over the Nice seafront.

Bouhlel was known to police due to some petty crimes, but was not previously linked to any radical groups.

The tragedy in Nice occurred eight months after 130 people were killed in coordinated terrorist attacks on a stadium, bars and a rock concert in Paris.