In China's Fujian Province, pollution from a mine owned by one of China’s top gold producers has caused major contamination in a local river and reservoir.

The mine is owned by the Hong Kong-listed Zijin mining company. A leak from the mine’s waste pond into the Ding river and Mian Hua Tan reservoir was first detected on July 3rd.

According to state-run Xinhua News, the leak has killed 4.2 million pounds of fish. State media have not yet reported what impact the pollution has had on the local drinking water.

Water contamination is a growing problem in China, as the push for economic growth outpaces environmental regulation.