Insurgents gunned down a brigadier general in Iraq's interior ministry Wednesday, the latest killing in an escalating campaign against the new government's administration. Brig. Gen. Ibrahim Khamas was shot and killed in his car by four gunmen driving in a four-door sedan as he drove through Baghdad's southeastern Zaafaraniyah district, police Col. Nouri Abdullah said. Khamas' wife and driver were injured in the attack, he added. In the northern city of Mosul, 225 miles (360 kilometers) northwest of Baghdad, mortar attacks by insurgents killed two Iraqis and injured eight others, including seven school children, police and hospital officials said. A car bomb also detonated in Baqouba, 60 kilometers (35 miles) northeast of Baghdad, injuring 14 people _ including 2 police officers. The car, parked in central Baqouba, blew up as a three-car police convoy drove by, damaging all the vehicles, police Col. Mudhafar Muhammed said. Also in Baghdad, a roadside bomb targeting an American military convoy driving through the eastern part of the city injured seven Iraqis, police Lt. Col. Ahmed Aboud Efait said. There were no reports of any Americans injured, he added. Gunmen also shot dead a transport ministry driver, Ali Mutib Sakr, in Sadr City, police Lt. Col Shakir Wadi said.