WATCH VIDEO: Moment innocent teen is glassed and beaten during brawl at Notting Hill Carnival

THIS is the moment an innocent teenager was struck over the head with a glass canister and beaten to the ground at this year's Notting Hill Carnival.

Police have released video footage showing the attack on a 19-year-old bystander who was “very seriously” injured when she was hit on the head with a gas canister and beaten to the ground at the event on Monday, August 29 just after 7pm.

Two groups of young men, mostly hooded, became involved a violent fight in Ladbroke Grove, west London.

The “completely innocent” teenager, who had been standing at the scene, was struck on the head with a gas canister and then kicked and punched.

The groups of men then fled in opposite directions, and the woman was admitted to hospital.

The footage was released by the Metropolitan Police today<Saturday> in a bid to persuade witnesses to come forward.

Detective Constable Sam Packer said: “The victim was left very seriously injured in hospital following this incident – although she has been discharged she continues to need treatment for the injuries she sustained.

“She is a completely innocent member of the public who was attacked without provocation or warning by people who were intent on causing violence.

“If you were there and saw what happened, or have footage that could help us identify those responsible, please do the right thing and contact us immediately.”

Detectives want to hear from anyone who saw it, or also captured video of it, to contact police ref via 101 or Tweet @MetCC ref CAD 3472/30 Aug.

Alternatively to remain 100% anonymous contact the independent charity Crimestoppers on 0800 555 111.

There were calls for the carnival route to be moved after the event was mired by violence, including attacks on police and several stabbings, including the murder of rapper Takayo Nembhard, 21, also known as TKorStretch.

He was at the west London street party with his sister and friends when he was stabbed to death in Ladbroke Grove at about 8pm on August 29.