According to MEGA, the incident took place at around 3:00 AM on Syngrou Avenue, and police are actively investigating.
Reports indicate that the altercation involved two individuals on a motorcycle, aged 35 and 22, and two others in a large vehicle.
Footage reviewed by MEGA shows both vehicles stopping, after which two individuals exited the larger vehicle. One began assaulting the 22-year-old, while the other shot the 35-year-old in the shoulder.
The attackers fled the scene, while the injured men made their way to a local hospital for treatment, according to MEGA.
Police cordoned off the area, where they recovered two cartridges and a shell casing. The investigation is ongoing as authorities search for the suspects.
The exact nature of the dispute remains unclear, and it is not known whether the meeting was prearranged.