A body has been found in Woodhill Forest, where the search for missing Auckland woman Carissa Avison was focussed.
A member of the public found the body, said a police spokeswoman.
Police officers remain at the scene, in West Auckland.
The body has yet to be formally identified and police could not confirm whether the body was that of Avison, who hasn't been seen since January.
No information was available about whether the body was male or female, the spokeswoman said.
The search for Avison focussed on Woodhill Forest, before being suspended earlier this month.
The 21-year-old was last seen at the Hunting and Fishing store in Holder Pl, Rosedale, on Auckland's North Shore about 10am on Thursday, January 26.
She hitched a ride from there to Coast Rd in Muriwai, arriving about 11am, and has not been seen since.
Police and search and rescue teams scoured Woodhill Forest for Avison, who worked for Auckland Transport, but to no avail. She did not show up for work that morning, despite leaving her Dockside Lane home in the city centre, about 8.30am.
Detectives repeatedly assured the public foul play was not suspected in her disappearance.
At the time of her disappearance, her brother Tyler Avison said she did not have a history of failing to stay in regular contact with her family, and going missing was out of character.
She often went to Muriwai Beach and loved camping and the outdoors, her family and friends said.
Claims surfaced that Avison had purchased a gun in the hours before she disappeared, but police refused to confirm the speculation.
Detectives remained tight-lipped around details of Avison's disappearance, including what she may have bought at the hunting store, if she knew the driver of the car who took her to Muirwai, or why they did not believe the circumstances were suspicious.
The official search was called off on February 3, eight days after she went missing.
Woodhill Forest is popular with mountain bikers, with 100km of purpose-built tracks and jumps, as well as walking trails and a tree adventure park, spread over 12,500ha.
Police had asked members of the public who use the forest to remain on the look-out for Avison, describing it as a "very busy recreational area".
Avison was last seen wearing black three-quarter-length leggings and a white t-shirt, black Nike sports shoes with white soles. She may also have been wearing a turquoise snowboard jacket and carrying a dark blue Country Road canvas duffel bag.
Carissa's movements on the morning of Thursday, January 26:
•8:30am: Seen leaving her apartment on Dockside Lane, central city
•10am: Caught on CCTV going into the Hunting and Fishing store, Holder Pl, Rosedale
•11am: Arrives at Muriwai Beach after catching a ride from the store