Rescuers found the body of the last missing miner Friday morning at a coal mine in east China's Jiangxi Province, bringing the death toll to 12 from the coal and gas eruption on Tuesday.

The accident occurred at 5:28 a.m. Tuesday when 12 miners were working in a shaft of the Xingfeng Coal Mine, in Jianshan Town, Gao'an City, according to the city government's information office.

Police have detained the mine's owner.

All the miners were residents of Gao'an city. The coal mine is privately owned with annual coal output of 30,000 tonnes.

The cause of the accident is still under investigation, rescuers said.