At least 84 people have been killed and 100 injured in France after a truck plowed intentionally into a crowd during a fireworks celebration for Bastille Day in the southern city of Nice.

UPDATE: 5:44am Death toll now is at 84 with over 15 still in critical condition from last nights attack. Police in France say that 31 year old man responsible was not on any "watch list" but was known in the are for small petty crimes. Driver was able to drive over a mile in to the crowds while shooting and taking down people. French President extends the "state of emergency" for the country by three months.

UPDATE: 6:44pm Death toll rises to 77

UPDATE: 5:43pm US authorities are stating that this could be "Terrorist Attack." Gun Man killed by police. President Obama is aware of the situation. Facebook has activated the Safety Check feature for people in and around the area of the attack.

UPDATE: 5:27pm - Police have found firearms, explosives, and grenades in the suspects truck.

A man who witnessed the attack told CNN he saw the driver accelerate and aim for people as the vehicle slammed the crowd.

The driver then emerged from the truck and opened fire on the crowd, another eyewitness said. French media is now reporting the gunman got back in the driver’s seat and traveled to another populated area before starting to shoot again.

The death toll is expected to climb as the night goes on.

We will keep you updated as information becomes available.