<p>Twenty-three miners were trapped underground in a Chinese coal mine on Friday after a leak of carbon monoxide gas, state media reported.</p>.<p>Rescuers were dispatched to the Diaoshuidong mine in Chongqing, a huge metropolis around 1,800 west of Shanghai, and investigators were working to determine the cause of the accident, the Xinhua news agency wrote.</p>.<p>The report said the accident happened at around 5:00pm local time (0900 GMT) without giving further details.</p>.<p>An earlier accident at the mine claimed the lives of three people in 2013, Xinhua reported.</p>.<p>Mining accidents are common in China, where the industry has a poor safety record and regulations are often weakly enforced.</p>.<p>Sixteen workers were killed at another mine on the outskirts of Chongqing in September after a conveyor belt caught fire and the resulting blaze produced dangerous levels of carbon monoxide.</p>.<p>Two years ago, seven miners were killed in the city after the connecting segment of a skip broke and fell down a shaft.</p>.<p>In October 2018, 21 miners died in eastern Shandong province after pressure inside a mine caused rocks to fracture and break, blocking the tunnel and trapping the workers. Only one miner was rescued alive.</p>
<p>Twenty-three miners were trapped underground in a Chinese coal mine on Friday after a leak of carbon monoxide gas, state media reported.</p>.<p>Rescuers were dispatched to the Diaoshuidong mine in Chongqing, a huge metropolis around 1,800 west of Shanghai, and investigators were working to determine the cause of the accident, the Xinhua news agency wrote.</p>.<p>The report said the accident happened at around 5:00pm local time (0900 GMT) without giving further details.</p>.<p>An earlier accident at the mine claimed the lives of three people in 2013, Xinhua reported.</p>.<p>Mining accidents are common in China, where the industry has a poor safety record and regulations are often weakly enforced.</p>.<p>Sixteen workers were killed at another mine on the outskirts of Chongqing in September after a conveyor belt caught fire and the resulting blaze produced dangerous levels of carbon monoxide.</p>.<p>Two years ago, seven miners were killed in the city after the connecting segment of a skip broke and fell down a shaft.</p>.<p>In October 2018, 21 miners died in eastern Shandong province after pressure inside a mine caused rocks to fracture and break, blocking the tunnel and trapping the workers. Only one miner was rescued alive.</p>