A gas explosion at a coal mine in China’s northern Shanxi province killed at least 82 people, local officials said Saturday, in what was the country’s deadliest mining accident in recent years.

A gas explosion at a coal mine in northern China has killed at least 82 people, according to state media, the country’s deadliest mining disaster in more than a decade.

Xi called for authorities to "spare no effort" in treating the injured and conducting search and rescue operations, while ordering a thorough investigation into the cause of the accident and strict ac...