The immediate cause of the road crash could not be ascertained, however rescue sources said speeding resulted this fatal mishap.
Six people were also injured in the accident. Some passengers are in a critical condition.
Deputy commissioner Rawlakot confirmed the deaths of 16 people. He said the bus was heading to Rawalpindi from Forward Kahuta when it met a tragic fate.
All the dead and the injured were moved to a nearby hospital.
