Police were called at 18:47hrs on Friday, 21 August to reports of gunshots heard in the vicinity of Clissold Park in Hackney.
Officers, including firearms officers, attended. A man, believed to be aged in his mid-30s, was found suffering from a gunshot wound.
He was taken by the London Ambulance Service to an east London hospital; his injuries are not believed to be life-threatening.
A crime scene remains in place.
Trident detectives from the Specialist Crime Command are investigating.
There have been no arrests and enquiries continue.
