This is the shocking moment a fight broke out in a south London chicken shop minutes before a 17-year-old was stabbed in the street during a “frenzied” attack.
The footage, captured on Monday, shows a youth hurling punches inside the crowded Tennessee Chicken Shop on Brixton Road near Oval Tube station.
At one point, he leaves the venue before coming back seconds later and throwing more punches.
The incident on Monday came just before a teenager was stabbed near the junction of Camberwell New Road and Brixton Road. He has since been discharged form hospital.
Police have linked the two men shown in the chicken shop footage to the incident.
Both are black, believed to be in their teens, wearing black clothing and dark hooded jackets.
The person suspected of stabbing the victim was wearing grey tracksuit bottoms and was around 5ft 11ins tall, police say.
Officers are also appealing for the victims inside the chicken shop to come forward.
Detective Inspector Ian Kenward of Lambeth CID said: "This was a frenzied attack in which a knife was used to inflict life threatening injuries on a teenage male. I have no doubt that the perpetrator intended to cause serious harm to the victim.
"Police will do everything in their powers to bring the offenders to justice. We are appealing for help from the public to assist in identify those involved. We are grateful for any assistance that you may be able to offer."
Anyone with information should call Crimestoppers anonymously on 0800 555 111 or Lambeth CID on 07785 774 447.
