A further arrest has been made in relation to the fatal stabbing of Whakatāne man Jamaine Wharton.
On Thursday, officers investigating the death arrested and charged a 41-year-old man with attempting to pervert the course of justice.
He is scheduled to appear in Whakatāne District Court on March 12.
"The investigation into Wharton's murder is ongoing and police would like to hear from anyone who has relevant information but has not yet spoken to us," Whakatāne Area investigations manager, Detective Senior Sergeant Paul Wilson, said in a statement.
Wharton was stabbed while attending a 21st birthday party at Waiohau Rugby Clubrooms on Saturday, February 27. The 31-year-old was taken to the Whakātane Hospital in the early hours of Sunday morning, where he later died.
Four people, including a 16-year-old and 20-year-old, were arrested last Friday in relation to the death.
"Please call 105 and quote file number 210228/0465 if you can help," Det Snr Sgt Wilson said.
"Information can also be provided anonymously via Crimestoppers on 0800 555 111."
