YOUNGSTOWN, Ohio (WKBN) – An investigation is underway to determine how a house fire started Tuesday morning in Youngstown.

Crews were called to the 400 block of West Judson Avenue around 5 a.m. Firefighters put out the fire shortly before 6 a.m.

Battalion Chief Timothy Frease said the front porch was in flames when they arrived.

Firefighters were told that the home was vacant, but they immediately went into search mode.

“We proceeded as if it was occupied. Neighbors were telling us people stayed there. Once we conducted primary searches on the first and second floor, there was nobody found in the structure,” he said.

Frease said the damage was significant.

Brian Oehlbeck contributed to this report.