Iraqi officials said two separate explosions in Baghdad have killed four people and wounded 14. Two police officers said a bomb attached to a policeman's car exploded early Sunday in the capital's northern Kazimiyah neighborhood, killing an officer and a bystander and wounding five others. Two other police officers said a suicide bomber rammed an explosives-laden car into an army checkpoint in Baghdad's western suburb of Abu Ghraib few hours later, killing two soldiers and wounding nine people, of which four were civilians, according to AP. Two health officials confirmed the causality figures.