Published: Jan 30, 2014 5:34 PM EST
Updated: Jan 31, 2014 1:16 PM EST

SAN CARLOS PARK, Fla.- The Lee County Sheriff's Office says arson is to blame for a fire at a vacant house in San Carlos Park, just before 4:00 p.m. yesterday.

Firefighters arrived on scene to find smoke showing from all sides of the home at 18531 Spruce Drive West and found fire in the attic.

The fire was called in by the residents of a neighboring home.

Three young males were spotted in the woods nearby, and questioned by firefighters and police. It is unknown whether they had anything to do with the fire. The investigation continues.