China’s worst floods in recent decades are disrupting water transport in the Yangtze River and pushing up coal demand, according to China Ports & Harbours Association.

Weeks of heavy rains have resulted in deluges across large swaths of central and eastern China, forcing millions of people to be evacuated as river water levels approach record highs.

In a research note, the industry group of China ports said: “The floods are affecting ports and shipping in the Yangtze River.