Catasauqua Borough Fire Department was called to a fire at a house in the 500 block of Fourth Street about midnight Aug. 15.

The building, in the borough’s historic district, has been vacant for years. It was reported renovations had recently been started on the building.

No one was in the building at the time of the fire. Catasauqua’s volunteer fire department has not released any findings on the cause of the blaze, pending investigation from the fire marshal.

Post-fire photos show significant damage to the second floor, where the fire is presumed to have originated.

Renovations to the property included new windows and a vinyl exterior cladding. Interior improvements are unknown.

Firefighters entered through the second-floor windows and the first-floor entry door.

Several second- and third-floor windows on the front of the house were boarded up following the fire. Flames reportedly shot out from a second-floor window, damaging the exterior.