At least 80 people have been killed in fighting in Falluja , an official says . Fighting is under way in Baghdad , but the number of casualties is not known . Gunmen called on worshipers to join a government - backed group . Some of the most significant fighting appeared to be in Falluja , where the U.S. military fought one of the bloodiest battles of the Iraq war , with militants planting al Qaeda flags on buildings . U.S. ` ` partnering with the Iraqi government very closely , '' State Dept . says .
At least 80 people have been killed in fighting in Falluja , an official says . Fighting is under way in Baghdad , but the number of casualties is not known . Gunmen called on worshipers to join a government - backed group . U.S. ` ` partnering with the Iraqi government very closely , '' State Dept . says .