Police are looking for three missing teenagers from Te Puke and an elderly man from the Far North.
Whangarei police want to hear from anyone who has seen Mita Clifford Marsh, aged 74, from Ahipara.
Mr Marsh is Maori with white hair and suffers from a number of medical conditions.
He has a
permanent aperture in his throat from a tracheotomy operation, which restricts his ability to communicate.
He sometimes uses a pen and paper to express himself.
Mr Marsh was last seen on September 1 at a bank at Hunters Corner, Papatoetoe.
His van, a white 1991 Toyota Hiace with the registration number BYP465, was found 11 days later in the Waipoua Forest, north of Dargaville.
Information can be given to Detective Senior Sergeant Marty Ruth, of Whangarei, on (09) 430-4530.
Police also want to hear from anyone who has seen teenagers Sonny Rarere, 15, Zara Gernhoefer, 14, and Sarah Dunham, 15.
The trio has been missing since Sunday. They were last seen hitchhiking at the State Highway 2 turn-off to Thames/Coromandel.
Anyone with information can contact their nearest police station.
