A FIRE at Warby Street on Sunday that completely destroyed a car and damaged two others is being investigated by Wangaratta Crime Investigation Unit (CIU).

Fire Rescue Victoria responded at 1.34pm after callers to Triple Zero (000) reported multiple fires that were threatening a building.

Firefighters arrived on scene within four minutes and FRV and CFA crews worked to extinguish the fire, and the scene was deemed under control at 1.48pm.

Senior Constable Steve Burke of Wangaratta CIU said police are continuing to make enquiries into the incident and looking to ascertain the point of origin and if it was accidental or deliberately lit.

"A bin and a car were definitely destroyed and the vehicles were in a carpark used by multiple businesses including the Mungabareena Aboriginal Corporation and the vet clinic," he said.

The three vehicles are owned by the corporation.

Anyone with information about the incident can contact Wangaratta Police Station on 5723 0888.