Seven Iraqis were killed during U.S. air and ground attacks on the insurgent stronghold of Fallujah, hospital doctors said Sunday. A U.S. assault using tanks in the eastern part of the city Sunday morning left at least three people dead and three wounded, while a U.S. air attack on Saturday night killed four and wounded six, doctors said. Women and children were said to be among the casualties. Reports said insurgents attacked a U.S. control point in the city and destroyed an armoured vehicle. The U.S. military said its air attack had been a "precision strike" targeted at an illegal control point manned by armed followers of suspected al-Qaeda leader in Iraq, Abu Musab al-Zarqawi. Elsewhere U.S. troops and Iraqi National Guards in Baghdad arrested a leading official from the movement of radical Shiite cleric Moqtada al-Sadr. Hazim al-A'araji was arrested Saturday evening when U.S. and Iraqi forces stormed his Baghdad home, a spokesman for al-Sadr said Sunday. --More 2248 Local Time 1948 GMT