Six car bombs explode in Baghdad , Iraq 's Interior Ministry says . Iraqi soldiers survey one of the Baghdad marketplaces where car bombs detonated Wednesday . The first blast went off at a checkpoint on the outskirts of Baghdad's Green Zone around 12:30 p.m. local time ( 12:30 a.m. ET) and was followed by two more blasts near an Iraqi army base about U.S. , Iraqi troops ambushed in northern Iraq ; two attackers killed , U.S. military says .
Six car bombs explode in Baghdad , Iraq 's Interior Ministry says . The first blast went off at a checkpoint on the outskirts of Baghdad's Green Zone around 12:30 p.m. local time ( 12:30 a.m. ET) and was followed by two more blasts near an Iraqi army base about U.S. , Iraqi troops ambushed in northern Iraq ; two attackers killed , U.S. military says .