Two workers were killed and six more were injured on Tuesday in a chemical plant explosion in northeast China's Liaoning Province, local work safety sources said.

The explosion occurred at 3:00 PM at a waste water treatment tank in Evonik Lynchem Co., Ltd. in Dalian City. It killed two workers standing near the sealed tank and injured six others.

The explosion at the wholly-owned subsidiary of German chemical giant Evonik Degussa is under investigation.

The blast did not cause big impacts to the environment, the Dalian work safety bureau said.

(Xinhua News Agency July 1, 2009)