The authorities have said they do not believe the suspect, Shamsud-Din Bahar Jabbar, a 42-year-old Army veteran, acted alone. The police said Mr. Jabbar died in a shootout with officers after he drove the truck into revelers on Bourbon Street in the city’s French Quarter in the early hours of New Year’s Day.

At least 15 people were killed and 30 injured on New Year's night after a truck sped down a packed Bourbon Street in New Orleans. Authorities are calling the incident a terrorist attack. Follow along for live updates,

Shamsud Din Bahar Jabbar drove a pickup truck into a crowd of people on Bourbon Street in New Orleans on New Year's Day, according to the FBI.