Chinese rescue crews have recovered the bodies of all 83 miners killed in Monday's mine blast in northwestern Xinjiang region.
China's official Xinhua news agency says only four of the 87 miners underground at the time survived the tragedy at the Shenlong Coal Mine in Fukang County. Xinhua says the explosion was caused by a buildup of gas in the mine shaft.
Officials say this is the worst coal mine accident in Xinjiang's history.
The regional government has asked other area coal mine operators to suspend production and make needed safety improvements.
China's coal mines are the world's most dangerous, with explosions, floods and fires killing thousands of workers each year. Inadequate safety equipment and lax safety rules are often blamed for the accidents.