At least 19 people were killed and 19 others wounded in violent attacks across Iraq, police said on Sunday.Tw o people were killed and seven wounded when a car bomb went off at a marketplace in the Shiite district of Sadr City in the eastern part of the Iraqi capital of Baghdad, a police source told Xinhua on condition of anonymity. Meanwhile, another car bomb struck an army patrol in the town of Mahmoudiyah, some 30 km south of Baghdad, leaving a soldier killed and three wounded, the source said. Three passers-by were also wounded by the blast which damaged several nearby shops and buildings, the source added.