Malakand- Two security officials were killed in an attack at a check post of the Levies force in Malakand today. Armed terrorists attacked Sakhakot check post of the paramilitary force killing two personnel of the Levies on the spot. The bodies of the security officials were transferred to Dargai hospital, police said. Security forces have launched a search operation in the area to trace the attackers. In another incident of terrorism, militants opened fire at the house of a local peace committee leader in Tank district. Two attackers were killed in retaliatory fire, sources said.