Police divers are searching a King Country river seeking evidence relating to the death of a man found in a shallow grave on Wednesday.
A 57-year-old Taumarunui man has since been charged with the murder after the body of a man thought to be in his late 50s was found in Ongarue, about 20km north of Taumarunui.
He is due in Taumarunui District Court on Thursday but Detective Senior Sergeant Dave Kirby says police inquiries have a long way to go.
“There are four scene examinations under way: two at residential properties, and one at the grave site and a vehicle of interest. The examinations are expected to continue over the next 48 hours,” he said.
The police dive squad is also present and is being tasked with searching the Ongarue River for evidence.
A post-mortem examination is due to take place on Thursday afternoon.
About 30 police staff are investigating.
Det Sen Sgt Kirby says police are interviewing witnesses and want to hear from anyone who saw suspicious behaviour in the Ongarue area between last Friday and Wednesday.