Pakistan, Sept. 14 -- Four miners died while another five were injured after a gas explosion at a coal mine in Balochistan's Harnai district, state-run Radio Pakistan reported on Sunday. The army completed a rescue operation at the incident site, where miners were trapped following a gas explosion, the report said. "Five miners trapped inside the coal mine were rescued alive through a timely rescue operation by the Pakistan Army," it said.* "Four miners have so far lost their lives, while five others sustained injuries in the gas explosion," the outlet added. According to the report, the injured miners were shifted to Quetta for further medical treatment. Accidents are common in Pakistan's coal mines, mainly due to gas build-ups. Mine wor...