Police work behind a restricted zone near the Notre Dame church in Nice, southern France, after a knife attack took place on Thursday, Oct. 29, 2020. The French prosecutor said the attacker was not on the radar of intelligence agencies as a potential threat. A knife with a 17-centimeter blade used in the attack was found near him along with a bag containing another two knives that were not used in the attack. In September, a man who had sought asylum in France attacked bystanders outside Charlie Hebdo's former offices with a butcher knife. Those attacks were claimed by the Islamic State group, which also is believed to have recruited a man now on trial for an unsuccessful plot to attack a church.