HAIKOU, CHINA - MAY 04: (CHINA OUT)
Sanitation workers collect dead fish in Hongcheng Lake on May 4, 2016 in Haikou, Hainan Province of China. Mass fish were found death in Haikou\'s Hongcheng Lake on Wednesday and then there being forty sanitation workers started to salvage the dead fish in morning. By the ten o\'clock, the workers had got out of more than eight tons of dead fish. Further reasons were under investigation.