Gunmen in two cars opened fire Tuesday on a van carrying policemen home from work, killing 11 officers and a civilian, police and hospital officials said. The incident occurred when the policemen were returning to their station after they were told that a trip to a training camp has been postponed, said a police officer on condition of anonymity. Police commander in the area, Maj. Gen. Walid Khaled confirmed 11 of his men were killed saying they all came from the town of Khanaqin near the border with Iran. "We are investigating the case and we have some leads to the crime," he said. Eleven policemen were killed as well as the civilian driver, said Qaisar Hamid of Baqouba General Hospital. Two others were wounded he said.