GHALLANAI- A security personnel was martyred and several others injured in a landmine blast today. Official sources said that the incident took place in Mohmand Agency when a landmine planted by roadside by unknown miscreants blasted while the security personnel were passing by the scene. As a result of explosion a security personnel was martyred while several others sustained wounds. The injured were moved to hospital for medical treatment. Militants continue to target the security personnel in Waziristan and other troubled tribal agencies and 15 security personnel have been martyred in landmine blast during recent days.