Officials in China say more than two dozen workers are trapped in a mine where a fire broke out in eastern Shangdong Province.

The State Administration of Work Safety says an air compression device 225 meters underground caught fire Wednesday. Initial reports said 36 miners were trapped, but the safety agency has since lowered the total to 28. It did not explain whether the other eight were rescued or escaped.

In southern China, rescue crews still are trying to reach a total of 42 miners trapped in two separate accidents. Twenty-three miners were trapped when water flooded a mine that was under construction in Guizhou province. Another 19 workers have been trapped since the mine they were working in collapsed on Saturday after several days of heavy rain.

China has the world's deadliest mining industry, due in part to poor safety standards. The government reports that 2,433 people were killed in coal mining accidents in 2010.