NEW YORK, April 22 (Xinhua) -- At least two people were killed and 19 others were sent to hospital on Wednesday after a chemical leak occurred at a silver catalyst manufacturing plant in the U.S. state of West Virginia, local authorities said. ■
NEW YORK, April 22 (Xinhua) -- At least two people were killed and 19 others were sent to hospital on Wednesday after a chemical leak occurred at a silver catalyst manufacturing plant in the U.S. state of West Virginia, local authorities said. ■
