A militant car bomb prematurely exploded overnight in eastern Afghanistan, killing nine insurgents and four civilians, authorities said Sunday. The blast happened in Logar province, some 10 kilometers (six miles) north of the capital, Pul-e-Alam, AP quoted Din Mohammad Darwesh, a spokesman for the provincial governor, as saying. Darwesh said it appeared insurgents, who he identified as three Afghans and six Pakistanis, set off the bomb too early. "Unfortunately, the explosion completely destroyed a nearby civilian house in which two women and two children were killed," he said in a telephone interview. "Police and local residents retrieved the bodies." Meanwhile Sunday, a lone suicide bomber entered a police station in southern Kandahar province, though officers' fire forced him to detonate his explosive vest early, only wounding one civilian, said Zia Durrani, spokesman for Kandahar's police chief.