From Xinhua, via China Economic Net (link):
Thirty-seven miners were killed in three coal mine gas explosions in the past two days, Xinhua and the national safety watchdog said yesterday.
Two blasts occurred yesterday, one in Rongsheng Coal Mine of North China’s Inner Mongolia Autonomous Region and the other in Taihe Mine in Qitaihe of Northeast China’s Heilongjiang Province.
The Inner Mongolia accident occurred at 4 am yesterday when 34 workers were underground, said the State Administration of Work Safety (SAWS) on its website.