Pittsburgh EMS, Fire, and Police responded to the 6900 block of McPherson Blvd around midnight, for a reported house fire.
When first responders arrived, they observed heavy smoke coming from the upper level of the vacant home.
Firefighters from Engine 17 were able to make entry and extinguish the smoke and fire around 12:45 a.m.
There were no injuries.
The Fire Investigation Unit has determined the cause to be Arson.