On Tuesday, police said they had found a body in the Waipoua Forest, near State Highway 12 on the west coast of Northland, after a five-day search.
It was believed to be the body of Gaelene Bright, but police said formal identification had not been made.
The last trace of Bright, 69, was early on May 1 when she left a friend's house in Waimamaku, a small rural village in south Hokianga.
Police are asking for information about the movements of Bright's white 2000 Holden Rodeo 4x4, registration YW7634, between Northland and Te Kuiti on May 3 and 4.
• Police ask anyone with information to call them on 105 quoting file number 220511/2799 or Operation Bright. Information can also be passed on anonymously via Crime Stoppers on 0800 555 111.