It happened around 3:35 p.m. at H and Thayer streets.
Police say a 21-year-old man was shot once in the head. He later died at the hospital.
Two others were also shot.
Police confirm one of the victims is listed in extremely critical condition. A third victim, a 22-year-old man, is currently in stable condition after suffering a gunshot wound.
No arrests have been made.
Anyone with any information is asked to call police at 215-686-TIPS.
Stay with Action News as we continue to follow this developing story.