This image taken from video footage run on Thursday, Oct. 18, 2018 by China's CCTV via AP Video, shows a landslide and barrier lake on Yarlung Tsangpo in Tibet in western China. Thousands of people have been evacuated following a landslide in Tibet that blocked the flow of one of the region's key rivers, China's emergency services said Thursday. Headlines in Chinese reads: "Oct. 17 footage provided by firefighter" "natural disaster emergency protocol activated."(CCTV via AP Video)