Two men, aged 20 and 27, were found injured in Forster Road at 8.50pm yesterday (September 8).
They were taken to hospital where the 27-year-old victim died in the early hours of this morning (September 9).
Forster Road New Park Road Brixton Hill shooting: Live
His family have been notified and are being supported by specialist officers.
The 20-year-old man’s injuries are not believed to be life-threatening or life-changing.
He remains in hospital.
Detective Chief Inspector Sarah Lee, who is leading the investigation, said: “My team are working at pace to establish the full circumstances that led to this man’s tragic death.
“Our thoughts remain with the victim’s family and friends at this very difficult time. They continue to be supported by specialist officers.
“A crime scene remains in place and residents can expect to see increased patrols in the local area as we carry out enquiries.
“We urge anyone in or around New Park Road to look at any doorbell or camera footage and share anything that may be of use with police.”
Anyone with information is asked to contact police by calling 101 or online, quoting CAD 7805/08Sep25.
Alternatively, you can contact the independent charity Crimestoppers anonymously on 0800 555 111 or by submitting an online form.