In other Iraq news, at least 37 people have died in a string of bombings near a U.S. convoy in Baghdad. More than 50 people were wounded in the attacks. The bombings reportedly occurred during a ceremony marking the opening of a new sewage system. It is unclear who died in the attacks. News reports indicated a U.S. helicopter evacuated some of the survivors. Earlier today, a car bomb exploded near the Abu Ghraib prison killing two Iraqi police officers and one U.S. soldier. In Fallujah, U.S. air raids continued last night. Iraqi doctors reported at least three civilians were killed.