Footage has emerged of three men appearing to steal a moped outside Stockwell Tube station in London.

The video, shot by a cyclist on November 16, shows the men approaching the moped rider as he is stopped at a red light.

Then, one of them seems to punch the moped driver while another one gets on the vehicle and rides away.

"I pulled up to the traffic lights and heard some shouting behind and saw these guys arguing with one of the moped riders," the filmer wrote online.

"Shortly after it got physical and next thing I know one of the guys has punched one of the riders and stolen his moped."

This occured outside Stockwell Tube Station, London @ 16:50 16/11/17.

I pulled up to the traffic lights and heard some shouting behind and saw these guys arguing with one of the moped riders. Shortly after it got physical and next thing I know one of the guys has punched one of the riders and stolen his moped. The other moped driver drove off and the stolen moped and their chased after him.

I was on my bike in absolute disbelief.