Detectives investigating a shooting in Streatham, which has left a man in a critical condition, are appealing for witnesses and information.
Police were called at 02:10hrs on Monday, 5 August following reports of a man injured on Wellfield Road, SW16. Another man was reported to be in possession of an offensive weapon.
Officers, including armed officers, and the London Ambulance Service attended but no victims or suspects were located at the scene. However, evidence of a firearms discharge was found.
A short time later, a man - aged in his 20s - was dropped-off at a central London hospital with gunshot injuries. He remains in hospital in a critical condition.
A crime scene remains in place.
Trident officers from Specialist Crime are leading the investigation and are appealing for any witnesses or anyone with information to come forward.
No arrests have been made. Enquiries continue.
Anyone with information is asked to call police on 101 quoting Cad 684/05AUG or Crimestoppers anonymously on 0800 555 111.