Police were called at 6.13pm on Sunday, 7 May, to reports of a shooting in the area of Ivanhoe Road, SE5.
Officers attended the location along with ambulance colleagues.
In Grove Hill Road, SE15 near the junction with Lyndhurst Way, officers found two men suffering injuries having been in a car which was involved in a collision at the location.
The two men were taken to hospital. One had suffered a gunshot injury; the second man is believed to have been injured in the vehicle collision.
Neither is thought to have sustained life-threatening injuries. However officers await a full assessment of their condition at hospital.
There has been no arrest at this stage.
Any witnesses or anyone with information are asked to call 101, ref 5646/07may. To remain anonymous, please contact Crimestoppers.