GUIYANG, Aug. 2 (Xinhua) -- Seven people were killed in a coal mine blast in southwest China's Guizhou Province, local authorities said Friday.

Photo: VCG

As of 4:10 p.m. Friday, the last trapped person was rescued from the mine and showed no signs of life. A total of seven people were killed with a solitary survivor in the accident.

The explosion happened at 4 p.m. Wednesday in a coal mine in Liangyan Town, the city of Bijie. Eight people were trapped when the gas explosion occurred.

The cause of the explosion is still under investigation.