A woman has been decapitated in a suspected terror attack in Nice, French police say.
Three people have died and several others are injured after a knife attack reportedly took place near the Notre Dame church.
Nice’s mayor Christian Estrosi tweeted: “Everything suggests a terrorist attack.”
He added that one person had been arrested.
French interior minister Gerald Darmanin said a police operation is under way and encouraged people to stay away from the area.
The assailant was arrested after the Thursday morning attack and taken to a nearby hospital after being injured during his arrest, a police official told AP. The suspect was believed to be acting alone, the official said.
French parliament suspended a debate on new virus restrictions and held a moment of silence for the victims.
It comes as the country is under high alert for terrorist attacks.