Emergency services responded to reports of smoke coming from the window of a unit on Blyth Street just before 4.30pm on Sunday.

Fire crews quickly extinguished the blaze before it could spread to any adjoining homes.

But they were unable to save a male resident who was found deceased inside the premises.

The MFS has estimated damage to the property at $100,000.

The investigation is ongoing and anyone with information that may assist is asked to contact Crime Stoppers on 1800 333 000 or online at www.crimestopperssa.com.au/