AP Interview: Nice mayor: Step up fight against extremism

People look flowers placed on the Promenade des Anglais at the scene of a truck attack on Thursday. France is holding a national moment of silence for 84 people killed by a truck rampage in Nice, and thousands of people are massed on the waterfront promenade where Bastille Day celebrations became a killing field. (AP Photo/Claude Paris) (The Associated Press)

Ghassan Zaour watches people gathered around a makeshift memorial after observing a minute of silence to honor the victims of deadly attack near the area where a truck mowed through revelers, on the Promenade des Anglais in Nice, southern France, Monday, July 18, 2016. France is holding a national moment of silence for 84 people killed by a truck rampage in Nice, and thousands of people are massed on the waterfront promenade where Bastille Day celebrations became a killing field. (AP Photo/Luca Bruno) (The Associated Press)

The mayor of Nice Philippe Pradal speaks during an interview with the Associated Press in his office in Nice, France, on Monday, July 18, 2016. Speaking four days after a man drove a truck through Bastille Day crowds, leaving at least 84 people dead and hundreds more injured, Philippe Pradal warned that France has some way to go in preventing extremists from launching similar attacks on its territory. (AP Photo/Frank Jordans) (The Associated Press)

The mayor of Nice is calling for France to step up its fight against extremism, saying the attack on his city shows that radical ideas are still entering the country too easily.

At least 84 people died and hundreds more were wounded when Tunisian-born Mohamed Lahouaiej Behloul drove a truck through Bastille Day crowds on Thursday.

Nice mayor Philippe Pradal warned Monday that France has some way to go in preventing extremists from launching similar attacks on its territory.

Pradal told The Associated Press in an interview that "we haven't necessarily learned all of the lessons from the fact that our country is at war."

He said the fight against extremists wouldn't be won "with the tools of peace."