According to reports in Chinese media, 23 miners were killed and one was rescued after an accident due to excessive levels of carbon monoxide in a coal mine in southwest China's Chording. The accident happened at around 5 PM on Friday at the closed Diaoshuidong colliery in Yongchuan District in Chongqing Municipality, when workers were dismantling equipment in the pit. A total of 24 miners were trapped when the accident happened. The cause of the accident is under investigation, and the Work Safety Committee of China's State Council is supervising the investigation.
Diaoshuidong, built in 1975, was a high-gas coal mine with an annual production capacity of 120,000 tonnes. In 2013, three people were killed and two others were injured in a hydrogen sulfide poisoning incident in the same mine. The mine was suspended and shut down over two months ago.
Excessive carbon monoxide levels at a mine in Chongqing have trapped 23 people underground, China’s official Xinhua news agency reported on Friday, in the second such accident in the southwestern municipaly in little over two months.