TAMPA, Fla. (970 WFLA)Hillsborough County firefighters are investigating a fire they say “appears suspicious in nature” in Thonotosassa.

Firefighters say it happened on the 12300 block of Hwy 579.

Crews say they found heavy smoke and flames coming from four structures surrounded by multiple exposures. No one was inside at the time.

Photo Credit Hillsborough County Fire Rescue