Iraqi officials say twin car bombs near a major square in Baghdad have killed at least six people and wounded more than 40. Police and hospital officials say the explosives-packed cars were parked near each other when they blew up about the same time near government offices surrounding Nisoor Square, according to a report of the Associated Press. Sunday's attack occurred shortly after 11 a.m. as the area was crowded with people at the start of the work week. Officials say two policemen were among the six killed.