Three law enforcement officers were fatally shot and three others wounded, according to Baton Rouge officials.<br />A suspect was also dead in a gun battle with police.<br />The shooting happened early Sunday morning less than 1 mile from police headquarters.<br />The officers in Baton Rouge were responding to a call of shots fired when they were ambushed by at least one gunman, Mayor Kip Holden told NBC News.<br />Police told reporters authorities are seeking more than one suspect and said the public should be on the lookout for people dressed in black and carrying long guns.