BUNER/KHAR: Two shepherd boys were killed and a young girl sustained injuries in a grenade explosion in Khaista Baba on Sunday, officials said. Deputy Commissioner Zariful Mani told reporters that the boys, Gulzada (14), Sultanzeb (16), and their sister Bakhti Haram, found a grenade when they were grazing their flock of sheep. They were playing with the grenade when it went off, leaving the boys dead and their sister injured. The girl was taken to the District Headquarters Hospital in Daggar. Police and security forces launched a search operation in the area. Separately, five security forces personnel sustained injuries in a roadside blast in Damadola area in Bajaur Agency on Sunday, official sources said.