Cranbourne police are investigating following reports of an armed robbery in Clyde North on Thursday 20 November.
Investigators allege four males, allegedly armed with a large knife, threatened attendants working in a food trucks on McKillop Way about 1.35pm.
The quartet, who were all perceived to be of African appearance made off with cash and cigarettes in a small white car.
The investigation is ongoing.
Anyone with information is urged to Contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au.