Four workers have been rescued after being trapped for 47 hours after a collapse at a railway tunnel construction site.
The collapse happened on Monday morning in Pu'er city, Southwest China's Yunnan province. The construction project of Wanggang Mountain Tunnel, located in Mojiang county, is being undertaken by China Railway 16th Bureau Group Co Ltd.
More than 300 personnel from emergency management, public security, and firefighting departments, among others, were involved in the rescue, according to the information office of the Pu'er municipal government.
All four rescued workers have been sent to hospital and are currently in a stable condition.