A massive US missile strike in Pakistan's lawless Waziristan tribal region today killed at least 15 militants and triggered speculation that new Tehrik-e -Taliban chief Hakimullah Mehsud could be among the dead. <br/><br/>The intense speculation by Pakistani media came as Mehsud, according to Taliban, was in Basalkot village, 70 Kilometers south of Miranshah, the main town in North Waziristan agency, which was hit by four missile fired by US drones. Military authorities neither confirmed nor ruled out the possibility that Mehsud was among the dead. Several other key commanders were also reported to have been killed in the strike, the seventh this month in the area said to be infested with fighters of Haqqani network of the Taliban. <br/><br/>At least four missiles were fired early this morning at a house and the compound of a seminary in Basalkot village, which is located in an area along the boundary between North and South Waziristan. Taliban spokesman Azam Tariq claimed Mehsud, is safe and has left the area minutes before the missile strike. The house targeted in the attack was destroyed. The compound that was struck was reportedly being used by the Taliban as a training camp.