Police are investigating a spate of suspicious car fires at Northgate early this morning, according to SA Police.
Police initially attended at Cityside Drive just after 3am following reports of a car fire.
Fire crews attended and extinguished the blaze to the Hyundai sedan.
While attending to that incident, two more car fires were located in Hastings Lane and Ludgate Avenue which damaged two Holden sedans.
Early investigation into the cause of the fires, indicates that accelerant had been sprayed on the tyres of all three cars.
Police believe the three fires are linked and are asking if anyone saw anything suspicious in the area to call Crime Stoppers on 1800 333 000 or report online at https://crimestopperssa.com.au