The Associated Press reported on Wednesday that recently-found surveillance footage shows multiple suspects placing an explosive device in New Orleans, citing an intelligence bulletin from the Louisiana State Police.

The footage, which has not been released to the public, allegedly shows three men and one woman placing one improvised explosive device (IED) in the French Quarter. Authorities believe that the group placed multiple IEDs in the area.

Suspects hid the devices, which were wired for remote control, within coolers. Authorities later found a remote control was discovered inside the vehicle that plowed through a crowd of people on Wednesday.