Two car bomb attacks in Baghdad killed at least 40 people and wounded many others.
In Samarra, north of Baghdad, insurgents attacked a police station, killing six police officers.
A battle between unidentified gunmen and Iraqi troops in Baq'ubah left two civilians dead.
In Baghdad, one person was reported killed in a U.S. air raid. In addition, the U.S. military said today that three more U.S. soldiers have been killed in insurgent attacks -- one on May 4 and two the next day.
(compiled from agency reports)