The death toll in a devastating suicide attack on a government office in Pakistan's tribal belt today rose to 104 after more of the injured succumbed to their injuries and rescue workers dug out 36 more bodies from the rubbles of collapsed buildings.Officials of the political administration of the restive Mohmand tribal region said this today.They said over 110 people were injured in the attack and dozens were still being treated in hospitals in Mohmand Agency and Peshawar.Authorities had on Friday said that nearly 70 people were killed when two suicide bombers struck the office of the assistant political agent in Yakaghund village in Mohmand Agency.The powerful blasts destroyed dozens of homes and shops in a market near the office. Over 30 prisoners escaped from a jail in the wake of the attack.Rescue teams continued to sift through the debris of collapsed buildings in Yakaghund today and officials said they feared people could still be buried under the rubble. Some persons, including women and children, were reported missing.