Police are appealing for public assistance following the armed robbery of a service station in Kingaroy overnight.

Initial investigations suggest at around 8:40pm a man entered the business on Youngman Street and threatened an employee with a tyre lever, demanding money.

The employee complied with his demands before the man fled the scene on foot, travelling along Youngman Street towards River Road.

The 48-year-old male employee was not physically injured during the incident.

Police attended and conducted patrols of the area but were unable to locate the man.

He is described as approximately 178cm tall, of a muscular build and wearing a black balaclava under a grey hoodie, blue jeans, white sneakers and white gloves.

Investigations are continuing.