Paramilitary forces backed by jets and helicopter gunships Thursday killed 18 militants in a restive tribal region bordering Afghanistan, a security official said. "At least 18 militants were killed, including one important commander," a security official told a foreign news agency. He did not disclose the identity of the commander. "Helicopter gunships, jets and artillery pounded and destroyed several militant hideouts in various areas of Mohmand," the official said. "There were no casualties of security forces." The militant death toll could not be confirmed independently as the area is sealed off under military operations. Mohmand is one of seven lawless tribal districts in northwestern Pakistan, where Taliban militants are active.