Watch: The moment brave passerby wrestles with armed bank robber
Dramatic CCTV footage of a member of the public wrestling with an armed bank robber has been released by police.
The passer-by attempted to apprehend the "brazen" balaclava-clad thief seconds after he pulled a weapon on "terrified" staff at the bank in south-west London.
Investigators from the Metropolitan Police's Flying Squad are probing the incident that took place on a busy high street.
The suspect, aged between 30 and 40, approached the bank in Broad Street, Teddington, at around 2.30pm on March 10, first peering through the door, police said.
When he returned a short time later he pulled a balaclava over his face and approached the counter, pulling a gun from a blue plastic bag and demanding money.
"The man was confronted by a member of the public who attempted to restrain him, but after a brief struggle the suspect managed to escape," a police spokesman said.
The robber, who is thought to have travelled to the bank on an adult mountain bike and live in the local area, fled with over £150 (€167.50).
Detective Constable Mike Bunn said: "This was a brazen robbery on a busy high street which left members of staff at the branch terrified.
"The robber travelled to the bank on a men's mountain bike and it is possible that he may live locally. I am urging anyone who recognises the man in the footage to contact us."
Police said the suspect was wearing a grey hooded top with a cap, black gloves, a black satchel bag and dark trousers.
He also wore Nike trainers with what appears to be a red tick.
Anyone with information is urged to contact Mr Bunn by calling 101. Alternatively they can call Crimestoppers on 0800 555 111 or visit crimestoppers-uk.org, quoting reference J/03680/2017 241386.