3 Killed, 6 Missing after High Levels of Carbon Monoxide Detected in NW Mine

CRIENGLISH.com

Local authorities said Thursday three miners had died of carbon monoxide poisoning, while six others remained missing in a lead-zinc mine in northwest China's Gansu Province. The Changba Lead-Zinc Mine near the city of Longnan said it failed to contact ...
 

http://english.cri.cn/6909/2011/04/28/2821s634625.htm