Police have charged a teenager over the armed robbery of a store in Moonah yesterday evening.

The 16-year-old allegedly entered the store on Main Road about 5:15pm, in possession of a knife, and demanded money from staff before leaving the premises with a quantity of cash.

Police conducted a number of searches and the youth was arrested nearby a short time later. He was charged over this incident and separate stealing and trespass matters, and was released on bail.

Anyone with further information about the incident can contact Glenorchy CIB on 131 444 or Crime Stoppers at crimestopperstas.com.au. You can stay anonymous.