Rescuers work at the accident site in Qitaihe, northeast China's Heilongjiang Province, Dec. 1, 2016. Rescuers have reached an area where 22 miners are believed to be trapped following a coal mine blast in northeast China's Heilongjiang Province, rescue headquarters said Thursday. The explosion occurred at a private coal mine in Qitaihe City at 9 p.m. Tuesday, trapping 22 workers underground. (Xinhua)