The FBI is investigating the attack as an act of terrorism and said a flag of the so-called Islamic State group was found in the vehicle. Officials identified the driver as Shamsud-Din Jabbar, 42, a US citizen from Texas.
Investigators are working to determine his potential associations and affiliations with terrorist organisations.
Jabbar was killed in a firefight with police following the attack in an area teeming with New Year revellers.
A photo circulated among law enforcement officials showed a bearded Jabbar wearing camouflage next to the truck after he was killed by police. Investigators recovered a handgun and an ARstyle rifle after the shootout, a law enforcement official said.
The FBI said a potential improvised explosive device was located in the vehicle and other potential explosive devices were also located in the French Quarter.
At a news conference, New Orleans Mayor LaToya Cantrell described the incident as a "terrorist attack" and the city's police chief said the act was clearly intentional. Police Commissioner ...