Authorities stated that the accident happened when construction workers tried to re-blast a hole. Excavation work was in process on the central and southern portions of the Liangshan tunnel when explosives used for demolition went off, the authorities added.
The Nanlu-Liangshan tunnel in Linfen City is being built by Erchu Co. Ltd., a subsidiary of China Railway Tunnel Group. According to reports, the project manager allegedly tried to conceal the accident.
