politics-war: A ship sails across the confluence of the Yangtze and Jialin rivers. Officials are investigating why this section of waterway has turned red in Chongqing, China. Photograph: ChinaFotoPress

politics-war: A ship sails across the confluence of the Yangtze and Jialin rivers. Officials are investigating why this section of waterway has turned red in Chongqing, China. Photograph: ChinaFotoPress

politics-war: A ship sails across the confluence of the Yangtze and Jialin rivers.