The Federal Bureau of Investigation and the U.S. Department of Homeland Security on Monday warned of a potential public safety threat from violent extremists who might try to copy the New Year's Day attack in New Orleans that killed 14 people.

A Public Service Announcement was issued to "highlight a potential public safety threat from violent extremists" in response to the New Year's Day attack.

Federal law enforcement is asking the public to remain vigilant as they warn of possible copycat attacks similar to those seen in New Orleans. In a joint statement from the FBI and the Department

The FBI and Department of Homeland Security warned about potential 'copycat' vehicle attacks like the one in New Orleans that killed 14 on Jan. 1.