A man arrested during a search for missing Wanganui man Whetu Teaola Hansen is behind bars but police have yet to arrest anyone for his killing.
Mr Hansen, 48, has been missing since November 24 and armed police have been searching a Linton property for days.
Manawatu police announced yesterday the inquiry had been upgraded to a murder investigation, but say they are yet arrest anyone in connection with Mr Hansen's death.
The arrested man appeared in Palmerston North District Court where a JP imposed sweeping suppression orders relating to name, age, address and the charges he faces. He was remanded in custody to December 17.
Earlier yesterday, Detective Senior Sergeant Simon Harrison said: "Based on information we have received in the past 12 hours we have upgraded this inquiry to a homicide investigation.