The suspect has been identified as a 31-year-old French-Tunisian man, who was apparently known by French police for committing common crimes but was not known to outside intelligence sources, according to the report. "This is France, which is under the threat of Islamist terrorism".
Interior Minister Bernard Cazeneuve said he was deploying 70 police, medical and technical specialists in order to make sure that the remains of those killed were quickly returned to the families.
For more on the truck attack during Bastille Day celebrations in Nice, France, CCTV America's Elaine Reyes spoke to Daveed Gartenstein-Ross, senior fellow at the Foundation for Defense of Democracies. Numerous cat-callers blamed government authorities for failing to enforce sufficient security measures following the November 13 attacks in Paris. Stay for the moment in your homes.
"Why did I come from a country where I could die to this place where, without divine intervention, I could have also been left as a corpse on the ground?" he wrote on Facebook.
As the sun rose over the picturesque bay, forensic police swarmed the resort, which has drawn sun-seekers and the jet-set since the 19th century with its pebble beaches and clear blue water.
The truck was riddled with bullet holes and badly damaged, with burst tires. In terms of the fact that that kills people, which we know it does, a small vehicle limits your ability to kill lots of people. "I had to protect my face from flying debris".
Pictures of a young girl with braces or a teenager pulling a amusing face were among dozens posted.
He said the toll from the attack could rise.
At least 80 people have been killed in what French President Francois Hollande has branded a terrorist attack.
Supporters of al-Qaida and the Islamic State group praised the attack Friday, but there was no immediate claim of responsibility. Hollande announced a series of measures to bolster security.
Urvoas told reporters in Paris that the attacker "was at the center of several procedures but was sentenced for only one incident" earlier this year.
The terror attack is the 10th in France since January 2015, when Charlie Hebdo cartoonists were killed by Daesh terrorists.
"France was hit on the day of her national holiday, the 14th of July, symbol of liberty, because the rights of man are denied by fanatics and France is inevitably their target".
Since a nationwide state of emergency was declared after the November 13 shootings and bombings in Paris, the regional government has shut down five illegal religious centers on the suspicion they were used to foment extremism. In Downing Street and in other locations around the world, French flags were flown at half-mast flags across the world.
French authorities are investigating what they called a terrorist attack - France's third with mass casualties in 18 months and even more indiscriminate than the others.
"France can count on the European Commission and the rest of EU countries for continued support in the fight against terrorism both inside and outside the European Union".
AFP correspondent Robert Holloway was among the crowds celebrating France's national day on Nice's Promenade des Anglais when the nightmare began.
A witness named Nader told BFM television he had seen the whole attack from start to finish, and had initially thought the driver had "lost control".
Just when Egyptian tourist Nader El Shafei looked like he would become the next to fall under its large wheels, the truck stopped.
He also paid tribute to those who will have to deal with the psychological trauma of experiencing the attacks, whether or not they were physically wounded. "The guy next to me pulled her out".