QINSHUI, July 5, 2016 (Xinhua) -- A rescuer shows a letter written by trapped miners at a flooded coal mine in Qinshui County, north China's Shanxi Province, July 5, 2016. Eight miners trapped underground transported a letter to rescuers through a 117-meter-deep tunnel on Tuesday. Rescue operation is still underway. (Xinhua/Zhan Yan)
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