From BBC:

Explosions in two coal mines at opposite ends of China have killed at least 53 workers and injured many more.

A gas explosion on Saturday in Jixi, in Heilongjiang province in the north-east, killed 21 miners, said the official news agency Xinhua.

A few hours later, a similar explosion killed 32 miners in Fuyuan in Yunnan province in China’s south-west.

China’s mines are among the most dangerous in the world with more than 5,000 deaths reported every year.[Full Text]

-Also see Explosions in Chinese Coal Mines Leave at Least 53 Workers Dead from the Wall Street Journal