Police investigating the homicide of Auckland teen Jane Furlong are offering a $50,000 reward to help solve her 1993 murder.
Police revealed details of the reward offer at a press conference in Auckland this afternoon.
Police have also confirmed that Ms Furlong's partner Danny Norsworthy is refusing to speak to investigators.
Investigators say a number of people - including Mr Norsworthy - were refusing to talk to police and the reward was designed to be an incentive to talk.
"The investigation team continues to work tirelessly on this mystery and has done so ever since the remains were confirmed as Jane's. This announcement is just another phase in the operation,'' said Detective inspector Mark Benefield, officer in charge of the homicide investigation.