- A total of 75 miners were working in the shaft at the time
- Fourteen escaped and a search is under way
A mine explosion killed four workers and left 57 others trapped underground in central China, state media reported Friday, the latest fatalities in the nation's dangerous coal industry.
A total of 75 miners were working in the shaft at the time of the blast Thursday night, according to Xinhua news agency.
Fourteen escaped and a search is under way for the dozens of others.
The blast occurred shortly after a small earthquake hit near the mine in Sanmenxia city in Henan province.
The mine belongs to Yima Coal Group, a state-owned coal company in the province.
China, a large producer and consumer of coal, has one of the world's deadliest records for miners.
News of the injury and deaths of miners appear regularly in state media, with safety conditions, a lack of training and the flouting of laws contributing to the high number of deaths.
One of China's most dangerous year on record was 2002, with 6,995 deaths.