What we know:
- Truck ploughed into crowd in French city of Nice
- At least 60 feared dead and 100 injured
- Truck driver reportedly shot dead
- President Francois Hollande to hold crisis talks in Paris
An attacker has killed about 60 people and injured 100 when he drove a truck at high speed into crowds watching Bastille Day fireworks in the French Riviera city of Nice, local officials say.
Police shot and killed the driver, who drove at high speed for more than 100 metres before hitting the mass of spectators late on Thursday, regional sub-prefect Sebastien Humbert told France Info radio.
Officials were cautious about accounts from bystanders that the lone man driving the truck had also opened fire and, amid chatter on social media of a hostage situation, police called on people not to propagate rumours that were hampering their work.
There is no hostage situation, French interior ministry spokesman Pierre-Henry Brandet told BFM TV. "I can't give you information on the man's motives yet."
#BREAKING: Dozens of people dead, many more injured after van drives into a #BastilleDay crowd in Nice. #PrayForNicehttps://t.co/v6jEAUSh9e — Fusion (@Fusion) July 14, 2016
One woman told France Info she and others had fled in terror: "The lorry came zig-zagging along the street. We ran into a hotel and hid in the toilets with lots of people."
Another woman told the station she was sheltering in a restaurant on the promenade with some 200 other people, where things had calmed down about two hours after the incident.
"Dear Nicois," local mayor Christian Estrosi tweeted, "The driver of a truck appears to have killed dozens of people. Stay at home for the time being. More news to follow."
Regional newspaper Nice Matin quoted its reporter at the scene saying there were many injured people and blood on the street.
It published a photograph of a damaged, long-distance delivery truck, which it said was riddled with bullets, and images of emergency services treating the injured.
Social media carried images of people lying apparently lifeless in pools of blood.
