Police are appealing for help in finding a vehicle in connection with missing man Whetu Hansen.
Police are currently searching the Whanganui River in relation to the case.
A homicide investigation was launched in December 2013 following Mr Hansen's disappearance.
Detective Senior Sergeant Simon Harrison said police want to hear from anyone that saw a 1996 white Ford Courier ute, similar to the vehicle depicted in the photograph, in the Palmerston North or Whanganui area on Wednesday December 4 2013.
"I would encourage anyone that has any information about this vehicle or the death of Whetu Hansen to contact their local Police Station or Detective Dave Wilson of the investigation team on 06 213 9595.