QUETTA A pipeline supplying gas to Cadet College Mastung was blown up, some 70 kilometres south of the provincial capital on Saturday. According to police, unknown saboteurs had planted explosive device under 3-inch diameter gas pipeline in Mastung district which exploded with a big bang. As a result, a portion of gas pipeline was damaged, suspending supply of gas to Cadet College. After getting information, police reached the site and cordoned off the area. The official sources of SSGC said that repair work of damaged pipeline has started and gas supply from the damaged pipeline would soon be restored. Police have registered a case against unknown people and has started investigations.