Rescuers on Sunday retrieved the bodies of four miners from the collapsed Heshan Coal Mine in south China's Guangxi Zhuang Autonomous Region, where two miners were miraculously pulled out alive in the morning 188 hours after the accident occurred.

The fatalities have increased the death toll in the mine collapse accident to eight.

A total of 71 miners were working underground when the accident occurred on July 2 -- 49 managed to escape.

Rescue works are still going on for 12 people that remain trapped underground.