Two boys have been charged with the hold-up of a service station in Rotorua last Friday.
Detective Sergeant George Staunton of Rotorua CIB said a 14-year-old and a 15-year-old would appear in Rotorua Youth Court tomorrow charged with aggravated robbery.
A weapon police claim was used in the robbery has also been found.
Mr Staunton thanked the "number of people" who contacted police about the crime.
He said investigations continued into other robberies.