BANNU: Official sources on Thursday confirmed the killing of two militant commanders of the banned Tehrik-e-Taliban Pakistan (TTP) in a US drone strike in Afghanistan. The militant commander Sher Alam Khan and his deputy identified as Said Mula Khan were heading the TTP in Frontier Region Bannu, sources said. They said a US drone struck a hideout in Khost province of Afghanistan a day earlier wherein as many as seven suspected militants had been reportedly killed. Sources said both TTP militants were residents of Janikhel area in FR Bannu. Last month a US drone strike had hit a vehcile in Noshki area of Balochistan province near the Pak-Afghan border killing Afghan Taliban leader Mullah Akhtar Muhammad Mansour and his driver.