The country's state media says, thirty-eight workers are still trapped underground.

The accident occured late Friday night in Shanxi province, one of China’s main coal-producing regions. 

According to state media, dangerous levels of carbon monoxide were detected inside the mine before the explosion. 

At the time of the incident, around two hundred and forty-seven workers were inside. 

By Saturday morning, rescue teams had safely evacuated more than two hundred and one miners, but thirty-eight workers were still missing underground. 

However, the rescue operations was continuing while the report was filed.