Police are investigating an armed robbery that occurred in Rockingham around 9pm last night.
Regional investigations unit officers say two males entered a massage business on Day Road last night armed with various items.
Police say the men threatened the staff members and demanded money.
The two men fled, possibly in the company of a third person.
Police are still investigating the incident and urge anyone with information to contact Crime Stoppers on 1800 333 00 or online at www.crimestopperwa.com.au.