The Ministry of Public Security say the giant sinkhole was not caused by tunnel boring machine for Guangzhou Metro Line 11’ construction.
http://www.thatsmags.com/china/post/30192/watch-massive-sinkhole-opens-up-on-road-in-guangzhou
At the time of the collapse, a sanitation truck and electric bike fell into the pit.
cover tunnel photo by: Matt Brown from London, England / CC BY
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