Regional Investigations Unit detectives are calling for information after a man armed with a knife robbed a supermarket in Falcon on Monday afternoon.
About 3.30pm the man entered the supermarket on Old Coast Road and demanded cash from a staff member before leaving the store with the money.
No one was injured during the incident.
The offender is described as being in his early to mid 20s, and approximately 170cm tall with olive skin and a slim to medium build, and short dark hair.
At the time of the offence he was wearing dark long pants, a fluorescent yellow/green top with a dark coloured bottom, a baseball cap and sunglasses.
Anyone who recognises the man pictured is asked to call Crime Stoppers on 1800 333 000 or report the information online at crimestopperswa.com.au
Reports can be made anonymously and rewards are available.