Published: Aug 10, 2010 11:23 PM EDT
Updated: Aug 10, 2010 8:04 PM EDT

EAST NAPLES, Fla. - Three suspicious house fires in Collier County have the State Fire Marshal investigating for arson. Now, firefighters have a warning for anyone living near an vacant home.

"They said it looked like somebody broke in and poured flammables around the house and set the house on fire," Jason Hannan tells WINK News.

Hannan's newly remodeled property on Painted Leaf Lane was the first to go up in flames Monday night. Just hours later, and within walking distance, a house on Copper Leaf Lane also went up in smoke.

Greg Spears with the East Naples Fire Department says there are signs the later fire is suspicious as well, "No electrical power going into the structure that pretty much eliminates the origin of the fire being electrical in nature."

Another blaze catching the eye of the Fire Marshal is one on Santa Barbara Boulevard, less than a mile away.

The common thread in all three, no one lived there.

"Unfortunately, with vacant property a lot of problems can happen with that, and one of those things is the possibility of arson," Spears says.

Investigators with the State Fire Marshal's office weren't available for comment.

Fire officials want residents in the East Naples area, especially those living next to vacant homes, to keep their eyes out for suspicious activity.