At least four Iraqis, including a policeman, were killed and six others wounded Friday when a car bomb went off outside a parking garage in a marketplace in central Baghdad, media reports said, according to DPA. The car was parked outside al-Bab al-Sharqi (the eastern gate) market near the Jomhouri Bridge, which leads to the fortified Green Zone, independent Voices of Iraq news agency reported citing a police source. The source did not specify whether a suicide bomber was in the car or it was a remote-controlled car bomb. Meanwhile, at least three Iraqis were killed and 21 injured, mostly children, when a suicide attacker driving a car selling chocolate blew himself up at a playground in central Tuz Khormato, north of Kirkuk city, a police source said. Most of the victims were Kurds celebrating the first day of the Muslim festival of Eid, which follows the holy month of Ramadan, area police chief colonel Abbas Mohamed said. Among those killed in the attack was the son of the deputy governor of Salahaddin province, while another two of his children were injured, Mohamed added.