1. A section of the Yangtze River in Chongqing, China, has turned bright red. The cause is still being investigated, but officials say it may have been caused by recent floods stirring up silt upstream.
2. A ship sails across the junction of the Yangtze River and the Jialin River in Chongqing
3. A man holds up a bottle of red water in Chongqing
4. A man casts a net into the red river