Shocking moment digger pulls down wall and flattens man

This is the shocking moment a concrete wall fell down on a passing motorcyclist in southeast China.
The video footage taken on March 16 in Shenzhen, shows a digger demolishing an unused wall in the middle of the road, hitting a biker as he cycles past.
The man surnamed Zhong, fell from his bike and was knocked unconscious.
The incident took place at Shenzhen city of Guangdong province on March 16.
Zhong was on his way to work and drove past the construction area.
He told Pear that the digger was not moving and at the time he did not notice that people were operating it.
However when he drove past, the digger swung and demolished the wall.
His bike was crushed to a lump of metal.
Zhong was found unconscious after being knocked down by the wall. Onlookers reported the accident to the police and called for an ambulance.
Doctors conducted emergency surgery on Zhong as they diagnosed severe bone fractures on his both legs.
One neighbour told Pear that there are primary schools and kindergartens ahead of the construction site.
'If this happened when students were going to school, I couldn't imagine the consequences,' said the neighbour.
Zhong's wife, Ms Zhou, blamed the construction company for not pulling a barricade tape and putting up a warning sign.
She added there wasn't anyone giving signals to indicate that the wall was being demolished.