Many people in Maysan and its capital , Amara , are backers of Shiite cleric Muqtada al-Sadr 's political movement and have been affiliated with his militia , the Mehdi Army . • A parked car bomb killed three Iraqis and wounded seven others Wednesday when it detonated near an ice cream shop in central Baghdad 's Karrada district , an Interior Ministry official said . • Troops conducting an operation near Taji , just north of Baghdad , captured a wanted bombing cell leader .