Investigators said they recovered an ISIS flag from the pickup truck, and FBI bomb technicians also found two improvised explosive devices (IEDs) in coolers: one that was found at the intersection of Bourbon and Orleans streets and one at another intersection about two blocks away.

Fourteen people were killed and more than two dozen were injured when a driver crashed a pickup truck into crowds on Bourbon Street, authorities said.

The FBI now says the New Orleans truck attacker acted alone in an “act of terrorism” when he drove a pickup truck into a crowd of New Year’s revelers early Wednesday, killing 14 people. The driver had posted videos on social media hours before the carnage saying he was inspired by the Islamic State group and expressing a desire to kill,