Rescuers on Sunday worked to free 17 miners trapped following a gas explosion at a coal mine in western China, the country's official news agency reported, according to AP. The blast at the mine 120 kilometers (70 miles) from Urumqi, the capital of the sprawling Xinjiang region, happened on Saturday evening, according to the Xinhua News Agency. It said three other people working inside the mine at the time had been rescued.