A man presented a small handgun to a dairy owner in Christchurch yesterday and demanded cigarettes and money.
Detective Sergeant David Parker said the man entered a dairy on Nancy Ave about 11.10am on Saturday wearing a black beanie and scarf and was carrying a black bag.
"The male has demanded cigarettes and money and left when he was given a small amount.
"The male was then seen getting into a maroon Ford sedan and driving off.
"Police would like to hear from anyone that was in the area and saw something or anyone that may know something about it."
Police can be contacted on 03 363 7400 or information can be provided anonymously via Crimestoppers on 0800 555 111