At least four Iraqis were killed when a car bomb exploded outside a popular restaurant in Baghdad on Thursday, security officials said. The attack took place in the predominantly Shiite district of Shola in northeastern Baghdad, officials from the interior and defence ministries told a foreign news agency. "Four people were killed and 13 wounded when a car bomb that was parked on the side of the road blew up," an interior ministry official said. Women were among the wounded, the officials said. In a separate incident, a suicide driver targetting an American patrol blew up his vehicle 37 kilometres (23 miles) northeast of the dangerous central city of Baquba Thursday morning, wounding seven civilians, the US military said.