Pittsburgh Police responded to shots fired at the corner of 9th Street and Liberty Avenue around 10:45 a.m.
Upon the investigation, police learned the male suspect fired at a male and female after he was pepper sprayed by one of them.
Officers located the suspect a short distance away, where he was arrested without incident.
The suspect faces various firearm charges.
There were no injuries reported.
Tonight, the City-County Building is illuminated to recognize Poison Prevention Week and the 50th Anniversary of "Mr. Yuk" in partnership with Children's Hospital of Pittsburgh of UPMC.
For questions about the lighting at the City-County Building, please reach out to the Office of the Mayor.