Witnesses have told police they saw a man throw an object through a window of the FairDinkum Fish and Chip store before it burst into flames on Friday night.
Victoria Police spokesman Senior Constable Adam West said on Monday police had been interviewing residents in an investigation into circumstances surrounding the suspicious fire that began about 11pm along Doveton Street North.
“Emergency services were called to a fast food premises in Doveton Street about 11pm after reports of a fire,” he said.
“The blaze was quickly brought under control and an investigation commenced.
“Witnesses have told police that a white car was seen near the store just before the blaze.
“The male driver exited the car and threw something through the window before driving off. The blaze took hold shortly after.”
Senior Constable West said it was yet to be determined if it was an incendiary object that was thrown.
FairDinkum Fish and Chips was opened just nine months ago under the new management of its Bacchus Marsh-based owners.
CFA Operations Officer Chris Bigham said on Monday fire investigators had provided initial advice to police about the incident.
It took four CFA trucks about 30 minutes to contain the fire.
The weatherboard store was heavily damaged along both sides and through its roof, but a brick facade was still intact.
Nearby residents were evacuated after fears there was asbestos riddled throughout the building.
Anyone with information about the fire is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report to crimestoppersvic.com.au.