Six U.S. soldiers died in roadside bombings and a shooting, the military said Sunday, according to AP. The U.S. military said three soldiers were killed and one other wounded in a roadside bombing late Friday near Tuz Khormato, 150 kilometers (95 miles) north of Baghdad. One soldier on a patrol was killed Sunday and three others wounded in a blast east of Rutbah, 400 kilometers (250 miles) west of Baghdad, the military said. In another roadside bombing, one soldier was killed Saturday and another wounded in western Baghdad. The military said in a brief statement from Baghdad that one soldier was found dead Friday of a gunshot wound. The military said an investigation was underway and did not say where the soldier was found or if an attack was suspected in the soldier's death. Thirty bodies were found Sunday in a grave in an industrial district in southern Baghdad after detained insurgents confessed to dumping bodies in the area, Col. Selam al-Maamuri of the Interior Ministry said. Al-Maamuri estimated the grave was 10 to 14 days old. In western Baghdad, a suicide car bomber attacked a U.S. patrol, police said. The U.S. military had no immediate information on the blast, but Dr. Muhanad Jawad of the Yarmouk Hospital said three civilians were killed and seven others wounded in the blast.