A unit on Grantala road Port Lincoln has burnt down overnight following a call to emergency services.
Just before 2 am Metro Fire Services, Country Fire Services and Port Lincoln Police crews attended the fire where a unit was engulfed in flames.
Fire fighters took approximately 15 minutes to contain the fire due to a collapsed roof, the fire was then completely extinguished within an hour.
Fortunately, no one was injured during the incident and no one was home at the time.
The fire is currently being treated as suspicious, fire cause investigators and Police crime scene investigators will fly in today to further investigate the incident.
The estimated cost of damage is still yet to be determined.