QUETTA: Militants blew up a main pipeline supplying gas to Qalat and Mangochar in Balochistan on Tuesday. Muhammad Nawaz, general manager of the gas company, said that an explosive device was fixed under the pipeline near Mastung, some 60 kilometres from Quetta. He said that an 8-inch diameter pipeline was blown up and that suspended supply to Qalat and Mangochar. President Parvez Musharaf had inaugurated the gas supply to the historic city of Qalat in 2004.