Unknown miscreants blew up the main transmission line of electricity between Sibbi and Guddu, which caused a power suspension to major areas of Balochistan including Quetta, a private TV channel reported Saturday. DG PEPCO has confirmed the incident saying, Due to the incident, we are failing to supply 600 megawatt and only 300 megawatt supply is possible now. He further said that the affected areas would not be provided electricity even at Sehri time. He said efforts are being made to repair the line as soon as possible.