LANDIKOTAL: Two volunteers of Tawheedul Islam (TI) were killed and seven others injured in a blast in the Zakha Khel area on Thursday. The TI also claimed to have captured three strategic posts of Lashkar-e-Islam (LI) and arrested three of its members from different posts in the Bokhar area near Tirrah Valley, sources said. They said that the volunteers injured in the blast had been shifted to hospitals in Peshawar. Sources said that the explosives planted in a checkpost went off as soon as the TI volunteers entered it.