ERBIL (Reuters) -A drone exploded in Iraq's northern city of Erbil on Wednesday injuring three people and damaging several cars, according to a statement by Kurdistan's counter-terrorism service.

       An explosive drone detonated on Pirmam road in Erbil's outskirts at 9:35 p.m. Iraq time, the statement added.

       Two security sources, speaking on condition of anonymity, said the drone was shot down.

       A security source told Reuters earlier that a drone attack targeted the U.S. consulate but did not give further details.

       There was no immediate claim of responsibility.

       In March, Iran attacked Erbil with a dozen ballistic missiles in an unprecedented assault on the capital of the autonomous Iraqi Kurdish region that appeared to target the United States and its allies. One person was hurt in that attack.

       (Reporting by Ali Sultan; Writing by Amina Ismail; Editing by Leslie Adler and Lisa Shumaker)