The U.S. military says an American soldier has been killed in a roadside bombing in Baghdad. A statement says Saturday's attack that killed the Multi-National Division _ Baghdad soldier occurred about 10:30 a.m. in northwestern Baghdad, according to AP. The announcement raises to at least 19 American troop deaths reported in the past week. Many of those have occurred in predominantly Shiite areas in Baghdad that have seen fierce fighting between Shiite militia and U.S.-Iraqi troops. The soldier's identity hasn't been released pending notification of relatives. In all, at least 4,032 members of the U.S. military have died since the Iraq war started in March 2003. That's according to an Associated Press count.