Firefighters were called to a vacant duplex in Cokeburg, Washington County, early Tuesday morning.
See photos from the scene
Officials told Channel 11 the fire broke out around 3:45 a.m. along Washington Street.
The duplex, which was scheduled for demolition, was fully engulfed by flames when first responders arrived.
No injuries were reported.
Download the FREE WPXI News app for breaking news alerts.
Follow Channel 11 News on Facebook and Twitter. | Watch WPXI NOW