"Yangtze River, the third longest river in the world turned blood red (orange-red)"

China's Yangtze River turns red blood.
The officials investigate the Yangtze, early predictions from scientists say the red reaction was likely a result of pollution.

Emily Stanley, a limnologist (study of freshwater science) at the University of Wisconsin, said it's possible microorganisms could have caused the change in the river.

"When water turns red, the thing a lot of people think of first is red tide," Stanley told LiveScience. "But the algae that causes red tide is a marine group and not a freshwater group, so it's highly, highly unlikely that this is a red-tide-related phenomenon."

Many people was affected by this phenomenon,fishermen were affected too but they continue fishing.