Suspected U.S. drones fired missiles at vehicles and hit a militant hide-out in a tribal region of northwestern Pakistan on Wednesday, killing at least nine insurgents, two officials said. In the first attack, the drones fired four missiles at a vehicle and flattened a nearby house near Miran Shah, the main town in the North Waziristan tribal region, killing six militants, an army and an intelligence official said. About 50 minutes later, drones fired three more missiles at a vehicle in Madakhel town, about 25 miles (40 kilometers) west of Miran Shah, killing three insurgents, the officials said. Other militants were also wounded in the two strikes, they were quoted as saying by The Associated Press.