Police are investigating the armed robbery of a service station at Biggera Waters tonight.
Initial information suggests around 7.50pm a man entered the business on Brisbane Road and threatened the console operator with a knife, demanding money.
The staff member complied and the man fled the store with a sum of cash.
He is described as mid-thirties, Caucasian in appearance, solid build and with a slight facial stubble.
The 28-year-old male staff member was not physically injured during the incident.
Investigations are continuing and police urge anyone who has further information to contact Crime Stoppers on 1800 333 000.