Iraqi police and medical officials say a bomb has killed the head of a U.S.-allied Sunni group south of Baghdad.

The police officer says Ali Abdul Ridha al-Badri was the head of an awakening council in Iskandariyah, 30 miles south of Baghdad, and was killed Sunday after meeting with U.S. forces.

The officer says the bomb was attached to al-Badri’s car.

The police and medical officials spoke on condition of anonymity because they were not authorized to talk to the media.