At least 19 passengers were killed and 14 injured when a bus fell into a ravine in the Dhana Sar region of Balochistan on Sunday morning, Pakistani authorities confirmed.Assistant Commissioner Syed Mehtab Shah told Pakistan's The Express Tribune that the bus was heading to Quetta from Rawalpindi when it tumbled into the ravine.Rainfall and speeding led to the incident,& he stated, adding that two students were  among the deceased.So far four bodies have been brought to the district headquarters hospital in Zhob and a rescue operation has been launched to recover the remaining bodies, The Express Tribune reported.All injured people have been shifted to Zhob hospital,& Shah said.The post 19 killed as bus tumbles into ravine in Balochistan, Pakistan first appeared on Ariana News.