Two bombs exploded near a Shi'ite Muslim mosque in Baghdad Sunday, killing at least 15 people, a police official said. The official said 57 people were also wounded at the Ahl al -Beit mosque. A witness said he saw many ambulances rushing to the scene, a crowded market area. The police official said a roadside bomb exploded and then a suicide bomber in a car blew himself up beside a crowd that had gathered to inspect damage from the first blast.