Pittsburgh Bureau of Police responded to a 911 call at Federal Street and S. Commons Street just after 9:20 p.m.
Responding officers from Zone 1 officers found a 29-year-old male hanging from a cliff. Officers attempted to hold the victim until Rescue arrived but the male fell approximately 18 to 20 feet to the ground.
The victim was transported to a local hospital in critical condition with possible internal injuries and a leg injury.
Police are investigating.
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.