Two cars have been destroyed in a fire in Whyalla Stuart overnight.
Police and MFS crews were called to a home on Nykiel Street just after 6.10pm on Monday, following reports a vehicle was on fire in the back yard.
Both a Holden sedan and Jeep SUV were found fully alight, with the blaze spreading to nearby guttering.
MFS crews extinguished the fire before it caused major damage to the outside of the property.
An occupant inside the home was treated for minor smoke inhalation.
Crime Scene Investigators and local detectives attended the scene to determine the cause of the fire, which police are treating as suspicious.
Anything with information that may be able to assist in the investigation is urged to contact Crime Stoppers online at crimestopperssa.com.au or at 1800 333 000.
