Domestic sewage mixed with untreated waste from the chemical plant and a paper mill `` have caused the biological crisis '' in the river , the department said in a statement . Authorities have cleared about 110 tons of dead fish from the Fuhe River . Officials believe they were poisoned by ammonia from a chemical plant . The company has been ordered to suspend operations . Comment:
Authorities have cleared about 110 tons of dead fish from the Fuhe River . Officials believe they were poisoned by ammonia from a chemical plant . The company has been ordered to suspend operations . Comment: