Police are investigating a fire at a Pennington business premises in the early hours of this morning.
Police and fire crews were called to the corner of Addison Road and Fortisgreen Avenue about 5.15am on Thursday 20 March by reports of a building fire.
Fire crews have worked quickly to extinguish the fire and prevented it spreading to neighbouring premises.
There are no reports of injury.
Detectives and fire cause investigators will enter and examine the premises later this morning.
Northbound traffic on Addison Road is restricted and diverted around the scene due to emergency service activity. Motorists are advised to find an alternate route to avoid delays.
Anyone who saw or heard any suspicious activity in the area this morning, or has any CCTV or dashcam footage of any vehicles in the area from around 5am, is asked to contact Crime Stoppers on 1800 333 000 or online at www.crimestopperssa.com.au
