Police are investigating the armed robbery of a supermarket at Caboolture South last night.

Initial information suggests around 8pm a man entered the business on Morayfield Road, selected some items for sale and approached the express checkout section.

The man requested cash from a 16-year-old female console operator and produced what appeared to be a hand gun before making further threats and demanding money.

The employee complied and the man fled the store through the main entrance with a sum of money.

He is described as Caucasian in appearance with a medium build and brown hair, and was wearing a white hoodie with black spots, black shirt with writing on the front, dark pants and orange round sunglasses.

Police have released the below images of a man who may be able to assist with inquiries.

Anyone who may have seen the man is urged to contact Policelink on 131 444 or Crime Stoppers on 1800 333 000.

No one was physically injured during the incident.