Detectives are appealing for information following a shooting in New Cross.
Police were called to Rollins Street, SE15, at 04:05hrs on Friday, 7 August to reports of man injured after a firearm discharge.
A 27-year-old man was found with two gunshot wounds to his chest and body.
He was treated at the scene by paramedics frm London Ambulance Service before being taken to hospital, where he remains in a serious, but stable, condition.
At around 04:30hrs a second man attended hospital with a gunshot wound to his hand. His condition is non life-threatening.
The investigation is being led by detectives from the Met's Specialist Crime Command.
Detective Constable Simon Carson said: "We believe a significant number of people were attending an unlicensed music event in nearby Bridgehouse Meadows at the time of the shooting.
"We're appealing for anyone who has footage or images of the incident to get in touch as soon as possible".
At this early stage of the investigation no arrests have been made.
Anyone with information is asked to contact police on 101 or via @MetCC, quoting CAD 1178/07AUG. To give information anonymously contact Crimestoppers on 0800 555 111 or online at www.crimestoppers-uk.org.
+ The public play a huge role in helping to both prevent and detect crime. We need to hear from anyone who has information about a crime, or about someone they suspect to be carrying a weapon or involved in organised crime. If you don’t want to speak to the police, contact Crimestoppers on 0800 555 111. They are a totally independent charity and you remain 100 per cent anonymous, they never ask your name and they cannot trace your call, your IP address or device you use. Alternatively,visit their website https://crimestoppers-uk.org/.