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Footage has emerged of an angry passer-by pushing a suicidal man off a bridge in Guangdong province.

Retired soldier Lai Jiansheng, 66, reached out to shake the hand of Chen Fuchao before pushing him off.

The heavily-indebted Chen Fuchao fell eight metres onto a partially-inflated emergency air cushion. He was hospitalised with wrist and back injuries.

Chen Fuchao may be charged with disturbing public order. Lai was accused of causing intentional injury.