Police are appealing for a possible witness to an aggravated robbery at a dairy in South Dunedin over the weekend, to come forward.

On Saturday evening, two offenders robbed a store on Hillside Road in Caversham. Two male youths were arrested a short time later.

Police are looking for a man who bought a mixed bag of lollies from the shop before the robbery to contact them as he may have information that can help Police. He is described as Maori or Pacific Islander, of medium build with black hair.