At least 12 terrorists were killed on Tuesday when military jets bombed militant hideouts in the restive Khyber tribal agency of Pakistan.According to the military's public relations wing, the airstrikes were carried out in an area of Khyber tribal region close to the Pakistan-Afghanistan border, Geo News reported.Khyber is one of Pakistan’s seven semi-autonomous regions governed by tribal laws. Taliban militants are known to have strongholds in the tribal areas along Pakistan’s border with Afghanistan.Tuesday’s airstrikes are the latest in the military’s offensive to clear the tribal areas of Taliban militants.The army started Operation Zarb-e-Azb in June 2014, and has since claimed significant success in the offensive.