At least nine people were killed and 30 others wounded in a series of car bomb explosions across the Iraqi capital of Baghdad on Wednesday, a police source said. The blasts began at about 9:00 a.m. local time (GMT 6:00 a.m.) when a car bomb ripped through Tobji neighborhood in the western central part of Baghdad, killing two people and wounding six, the source told Xinhua on condition of anonymity. Another car bomb detonated in Shaab neighborhood in northeastern Baghdad, killing three and wounding eight, the source said. Meanwhile, one of car bombs exploded near Kahramana intersection in Karrada neighborhood killed a civilian and wounded five others, the source said, adding that the other one went off in Adhamiyah neighborhood in the northern part of the capital, killing a civilian and wounding four. Another explosion occurred when a roadside bomb blew up at a popular marketplace in Sadriyah neighborhood in central Baghdad, killing two people and wounding seven, the source said. Iraq is witnessing its worst eruption of violence in recent years. According to the UN Assistance Mission for Iraq, almost 7, 000 Iraqis were killed and over 16,000 others injured from January to October this year.