He announced this during a conversation with journalists, broadcast by the BFMTV television channel.
“The attacker used the same method as the terrorist in the city of Conflans-Saint-Honorine,” TASS quotes him.
The mayor also added that the attacker shouted religious phrases, and one of the victims is a priest.
Earlier in Nice, a man stabbed people with a knife.
According to the latest reports, at least three people were killed in the attack.
Estrosi said that all the circumstances of the incident indicate that the attack is a terrorist act.
On the evening of October 16, in a suburb of Paris, a young man beheaded a teacher, the attacker was shot dead by the police. French President Emmanuel Macron called the murder a terrorist attack.