The shooting incident occurred in the eastern Attica town of Anavyssos late Wednesday evening, and early reports suggested that three men were injured. The motives for the incident are not yet known.
According to information provided to the media, the three men were sitting on their balcony when they were shot at by unknown assailants, who later fled the scene in a car.
All three of the wounded were initially taken to the Kalivia Treatment and Prevention Center, and two were later transferred to Gennimatas Hospital.
The police are investigating the incident.