A gunman is caught on CCTV waving a shotgun at passers-by moments after blasting a man in the chest in a residential street.
The suspect, wearing a dark blue hooded top and a black bandana over his face, can be seen taking the sawn-off shotgun from an accomplice before roaming around and shooting at bystanders.
A 21-year-old man was found shot in the chest and windpipe and a 16-year-old schoolboy suffered a minor gunshot wound to his arm, the Metropolitan Police said.
The older victim suffered a punctured lung and serious damage to his windpipe but made a full recovery after undergoing immediate surgery at a London hospital.
Three men are seen on the CCTV at the junction of Marcella Road and Serenaders Road at around 7pm on Thursday May 12.
A man in a white shirt, upon realising one of the suspects has a shotgun, runs and dives behind a parked car before sprinting away.
Moments later, the gunman appears to shoot the weapon over a wall and then takes a bicycle and flees the scene, followed by his two accomplices along Ferry Mews, in the direction of Brixton Road.
Detectives from the Met's Trident unit have released the footage in an appeal to identify the men, who are sought in connection with the attempted murder.
Detective Constable Jo Ross, from Trident and Area Crime Command, said: "The 21-year-old victim was fortunate to recover from what were potentially life-threatening injuries at the time of the incident.
"Other passers-by were threatened by having a shotgun pointed at them - these are dangerous people.
"We are keen for the public to give us any information in relation to this appeal, who witnessed the incident or who recognise the suspects. It happened in broad daylight and in an area full of schoolchildren."
The gunman is described as a black man in his 20s, of medium build and seen with a dark coloured bag over his shoulder and wearing black and white gloves.
His accomplices are both said to be black men in their 20s.
One was wearing a dark top with a large Franklin and Marshall logo on the front, a fur-lined hat and dark grey bandana and the other wore a dark hooded top, black gloves and a baseball cap with a white mark on the peak.