Police have released images of a man who may be able to assist with inquiries after a taxi driver was threatened at knifepoint in Bundaberg South overnight.

At around 7.15pm a man entered a taxi at a shopping centre on Maryborough Street and requested to be transported to Goodwin Street.

Upon arriving at the destination the man directed the driver to circle around and stop on Buss Street near the intersection with Hunter Street.

The man then lent over the driver seat, produced a knife and demanded money.

The 43-year-old male taxi driver grabbed the knife and struggled with the man before disarming him.

The man then fled the scene on foot into the nearby drainage system.

The taxi driver sustained a minor cut to the finger as a result of the incident.

The man is described as Caucasian in appearance, around 20 to 30-years-old with short curly brown hair, a tattoo on the left side of his neck and wearing a blue long sleeve shirt or hoodie, bracelet and wedding band on left hand.

Police are urging anyone who may recognise the man in the images provided to come forward.