At least 33 miners were trapped underground after an explosion in a coal mine in China's Chongqing municipality on Monday, authorities said.
The gas explosion occurred at 11.30 a.m. at Jinshangou Coal Mine in Yongchuan district's Laisu town when 35 miners were working in the shaft, Xinhua news agency reported.
Two were hoisted to safety.
Rescuers were searching for those trapped underground.
--IANS
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