[Geo News] At least two persons were killed and three others injured amid hand-grenade attack in Kalat district in Balaochistan late on Saturday, Geo news reported. According to police sources, unknown militants launched hand grenade attack in Kalat Bazaar, which hit laborers working on a machine, killing two poor Dilbar and Sufyan while three Azam, Irfan and Shaukat were left injured. Injured were shifted to hospital for medical treatment while police have lodged case against unidentified criminals, police said.