A large amount of dead fish were spotted in a river in southern China.<br /><br />In the video, shot in Huarong County in Hunan Province on September 6, a school of dead fish laid on the side of a river.<br /><br />The witness said the river might be polluted as the colour of it was from yellow to dark brown.<br /><br />The employees from the Bureau of Ecology and Environment are investigating the case.<br /><br />The video was provided by local media with permission.