Eleven people die due to carbon monoxide poisoning after a forcing fan caught fire under a coal mine in north China's Hebei Province, local authorities said Friday. The accident occurred at 8 p.m. on Thursday in a coal mine in Huailai County of Zhangjiakou City, Xinhua quoted the publicity department of Zhangjiakou City as saying. Thirteen miners were working under the mine when the accident happened. Two miners are still missing, the publicity department said.