Police have released images of a man they wish to speak to following an armed robbery at a convenience store in Wantirna South on Monday evening

Investigators have been told that just before 8pm a man entered the High Street Road premises and demanded cash and cigarettes from the attendant.

The male offender was allegedly armed with a weapon believed to be a large iron bar.

The offender was given an amount of cash and cigarettes before he left the store and fled along High Street Road.

It is believed he then headed south down Cathies Lane.

The male offender is described as having a solid build, and was wearing a blue hooded jumper and black tracksuit pants with a white stripe along the leg.

He had a handkerchief covering his mouth and nose and was wearing sunglasses at the time of the incident.

Investigators have released images of a man they believe could assist them with their enquiries.