Sixteen people were killed and one survivor was sent to hospital after being trapped in a coal mine accident in southwest China on Sunday, the official Xinhua news agency reported.There were excessive levels of carbon monoxide as a conveyor belt burned, trapping the 17 miners inside the Songzao mine, which belongs to a local energy company in Chongqing municipality, the Ministry of Emergency Management said in an online statement on Sunday morning.A team led by officials from the National Coal…
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