Beijing ? An explosion in a Chinese coal mine killed 20 and trapped 17 workers underground today in the country’s central region, a national work safety official said.

The blast came shortly after the world was riveted by Chile’s dramatic rescue of 33 trapped miners after they spent more than two months underground.

A man surnamed Li with the state work safety administration said he didn’t know how far underground the 17 workers were trapped at the state-owned mine. He had no details on the cause of the 6 a.m. blast in Henan province.

China Central Television originally reported that more than 30 people were trapped and 20 killed, but Li said the earlier number of people reported trapped included the dead workers.

The state-run Xinhua News Agency cited mine officials in Yuzhou city as saying today’s blast happened in a pit owned by Pingyu Coal & Electric Co. Ltd.

China’s mining industry is the most dangerous in the world, and more than 2,600 people died in mining accidents last year.