This happened on friday, 7th september 2012. The river is known as the "golden watercourse and is the longest river in Asia and the third longest in the world.
Chinese officials have blamed industrial pollution for the sudden discolouration of the renown river, the News.com.au reports.
The Yangtze is called 'golden waterway' because of the heavy rainfall it receives year-round.
The river runs through Chongqing, the largest industrial and commercial center.
http://news.yahoo.com/chinas-golden-waterway-yangtze-river-mysteriously-turns-blood-055644284.html
