Pittsburgh EMS, Fire and Police responded to the 100 block of N Highland Avenue for a report of smoke coming from a window around 11:40 a.m.
When first responders arrived, they were directed inside the structure to where the smoke was seen coming from. Firefighters entered the room and observed fresh burn marks on a mattress, but no flames.
A male was located nearby who jumped from an open window in the room. He was transported to a local hospital in stable condition with a fractured leg.
The fourth floor and below sustain water damage. There were no other injuries.
The Fire Investigations Unit arrived to process the scene and the investigation is ongoing.
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.