From Reuters:
At least 21 miners were killed by carbon monoxide gas poisoning in a coal mine in northern China on Sunday, the latest in a series of disasters in an industry stretched by increasing energy demand.
Seven other miners escaped from the Wujiu Coal Line in Datong, a major coal-producing region of Shanxi province. Another four were helped out, a Datong city official told Xinhua news agency. But more may have died.
“The number of miners who were working underground at the time was still unknown and rescuers had launched a search,” the Xinhua report said.
China is the world’s largest producer and consumer of coal but has one of the worst records for mining accidents.
