New Orleans attack latest: FBI, DHS warn of copycat vehicle attack danger

The FBI and Department of Homeland Security on Thursday issued a joint intelligence bulletin warning the nation’s 18,000 law-enforcement agencies about potential copycats seeking to emulate this week’s devastating ramming and shooting attack in New Orleans, ABC News has learned.

The bulletin was sent out of an abundance of caution to sensitize law enforcement around the country to be on the lookout for any activity pointing to the use of vehicles as a method to inflict mass casualties, sources told ABC News.

The bulletin notes that ISIS — to which New Orleans suspect Shamsud-Din Jabbar pledged allegiance before the New Orleans attack, according to FBI Deputy Assistant Director Christopher Raia — has been promoting the use of vehicles as a terrorism weapon since around 2014.

Read more: ABC News