KOHAT, March 22: The Military Engineering Services found a rusting bomb, said to be of early 20th century when the British ruled the region, during digging at the Pathan Centre building on the Sheikhan Road here on Thursday. The MES branch of the army demolished an old building and while digging the foundations for a new structure, it found the bomb believed to be of the British era. The bomb disposal squad was called which exploded it safely in the nearby firing range.