Baltimore City police were called to the 1100 block of Druid Hill Avenue for a reported shooting around 3:50 p.m.
When they arrived on the scene, police found a 34-year-old man suffering from a gunshot wound to the arm.
The victim was transported to an area hospital.
Anyone with information is asked to call Citywide Shooting detectives, at 410-396-2221 or the Metro Crime Stoppers tip line, at 1-866-7LOCKUP.
