The concrete bottom of a waste reservoir at a zinc-lead mining company in Cao Bang Province broke on Tuesday afternoon, releasing hundreds of thousands of cubic meters of toxic sludge into a local river.
The thick wave of sludge from the waste reservoir of CKC Company permeated the Gam River in Bao Lam District and found its way into some local houses, news website Zing reported.
At 10 p.m. on Tuesday, the company managed to block the flow of the sludge.
The river was seriously polluted. No injuries were reported.
Vu Ngoc Luu, chairman of Bao Lam District People’s Committee, told the press the environmental damage caused by the incident had yet to be calculated.
The district authorities ordered the company to quickly take measures to clean up the land and the river.
The work is ongoing.