EAST NAPLES, Fla. (AP) — Authorities say a southwest Florida died in a fire contained to a small shed behind his home.

Neighbors told the Naples Daily News they heard a series of explosions and screams Thursday afternoon. Fire crews took about 20 minutes to extinguish the flames. They found the body of 47-year-old Antonio Castaneda-Rodriguez.

A Collier County Sheriff's official says the fire is under investigation but doesn't appear suspicious.

The state fire marshal's office will try to determine the cause.