Over 10 tonnes of fish have died in the West Lake in Hanoi due to lack of oxygen according to local authorities. 

The mass fish deaths were seen from October 1 near the Trich Sai, Lac Long Quan, and Thanh Nien streets where environment workers had collected hundreds kilograms.   

The largest number of dead fish were seen floating near Trich Sai and Nguyen Dinh Thi streets.

The dead fish, mostly tench and tilapia, have been floating along the shore of the lake, which is the largest in Hanoi and also a popular recreation area.  

According to chairman of Hanoi People's Committee, Nguyen Duc Chung, the total dead fish by late Sunday was estimated at over 10 tonnes.  

"Initial test results from the Department of Natural Resources and Environment showed that the fish died from lack of oxygen," Chung said.

Dozens of environment workers were sent to collect dead fish on October 2

Chairman of Hanoi Nguyen Duc Chung (third from right) came to direct the collection of dead fish on October 2

Dtinews/Zing