HANGU - At least three persons were killed and seven others got injured when unknown armed persons fired bullets at a passenger bus at Tor Ghar area of Tull tehsil on Wednesday. Source informed that the passenger bus was on its way to Hangu via Parachinar Road. The road has been closed for the last one year and normally the passenger buses ply on this road under the security cover of FC, however this time the vehicle was on its way without any security. The deceased were identified as Rajab Ali, Nazir Ghulam and Hussain Jan, while the injured included Noor Janan, Ihsan Ali and Adil Shehzad. The injured were shifted to Combined Military Hospital Tull.