Police are looking for witnesses after a man allegedly threatened a staff member with a knife at a Fyshwick service station on Monday night.
Police said the man entered the BP service station on Ipswich Street about 11.30pm.
The man, who is described as Caucasian in appearance and 180 centimetres tall with a slim build, fled on foot with a sum of cash.
Police have appealed for witnesses or people with information, dash-cam or CCTV footage of suspicious activity in Fyshwick about the time of the incident to contact Crime Stoppers.
Information can be provided anonymously by calling 1800 333 000, quoting reference 6410299.