Four soldiers were killed Friday when their vehicle hit a roadside bomb northwest of Baghdad and a fifth soldier died Friday from an explosion in Tameem province, CNN reported Saturday.
Thus far, since the start of the war in March 2003, 3,958 U.S. military personnel have died in Iraq with 14 of those deaths occurring this month.
In Baquba, three women were among the 12 found dead Saturday in the mass grave. The dead were believed to be victims of al-Qaida, CNN said.
Also Saturday, a roadside bomb killed an Iraqi civilian in southeastern Baghdad while an al-Qaida leader was reported killed in Samarra in northern Iraq, CNN reported.
Mahmoud al-Douri, who also used the name Abu Omar, died in an exchange of gunfire with Iraqi police when they raided a house in Samarra, CNN reported.
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