Mine explosion kills 18, injures 12 in northeast China
Xinhua news agency quoted local authorities as saying the blast occurred in Helong city in Jilin province on Saturday.
The rescue operation ended after about 12 hours and a probe into the cause of the accident was under way, authorities said.
Steep rises in iron ore prices over the past several years have encouraged the development of mines with marginal ore quality and minimal safety standards in China.
China’s mining industry is the most dangerous in the world. According to official figures, thousands of miners have been killed in accidents in recent years.
The Chinese government has repeatedly shut down hundreds of mines as part of efforts to improve safety standards.