Four Iraqi civilians were killed and eight others were wounded Thursday after a parked car bomb exploded near a line of cars waiting to fill their tanks at a gas station, police said. The explosive device was lodged in an empty car, parked about 100 meters from the station in Baghdad's southeastern area of Zafaraniyah. Several vehicles were damaged in the 7:15 a.m. blast, according to the police officer who spoke on condition of anonymity because he was not authorized to release the information.