A reward of up to $50,000 is being offered by police seeking answers about the disappearance of Luana Deborah Laverne Williams from Tauranga 27 years ago.
Luana, known by family as Laverne, was last seen on the evening of 5 June, 1986 at her home address in Munro Street and was reported missing by her partner.
Ms Williams remains missing and her disappearance is being treated as a homicide. Like all major unsolved investigations it has been subject to intermittent review.
Today's announcement is the result of the most recent review along with new information that has come to light.
Detective Inspector Mark Loper said he was not prepared to be specific about the new information as he did not wish to jeopordise the case.