Wyndham Crime Investigation Unit detectives are appealing for public assistance following an armed robbery in Werribee South last week.
It is understood an unknown man armed with a tire iron entered a general store on Duncans Road about 2pm on Monday, April 15.
Officers have been told the offender made demands for cash but the 63-year-old shop keeper declined and chased the man out of his store.
The offender fled empty-handed and was last seen travelling in a white Toyota Camry with no registration plates.
Luckily, no one was injured.
Detectives have released CCTV footage of a man who they believe may assist with their enquiries.
Anyone with information, dashcam/CCTV footage or who witnessed the incident is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au