At least seven people were killed and three others injured in a U.S. drone strike launched Sunday morning in North Waziristan. A US drone strike killed seven suspected militants at a compound in North Waziristan region Sunday, security officials said. The compound was located by a road in Shewa district about 40 kilometres (25 miles) northeast of the region's main town of Miranshah. The drone fired four missiles at the compound and two vehicles parked outside were also destroyed, an intelligence official in Miranshah told AFP. "At least seven suspected militants were killed and three wounded," a security official in Peshawar told AFP, raising his earlier casualty assessment. The casualties were confirmed by two other intelligence officials in Miranshah. Pakistani authorities have reported 27 drone attacks since September 3. These have killed more than 150 people in the region.