DIALA / Aswat al-Iraq: At least four people were killed and 21 others were wounded in the car bomb explosion that took place in Baaquba, a medical source said on Monday.“The car bomb which exploded inside a car fair in Baaquba al-Jadieda neighborhood in central Baaquba, killed four and injured 21,” the source told Aswat al-Iraq news agency, giving no more details.