A man armed with a knife threatened a female shopkeeper in Hallam.
Police are investigating the armed robbery, which occurred in Spring Square about 3.30pm on Thursday 13 July.
They said the man entered the store and threatened the woman with the knife.
A short altercation then took place before the man fled with cash.
The victim suffered minor hand injuries and did not require treatment.
Investigators released images of a man who may be able to assist with their inquiries.
Call Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au with any information.
