Four people have been arrested and charged with murder over the death of Kaitaia man Lee Rata in the town on New Year's Eve.
The four charged are all members or associates of the Mongrel Mob gang.
Mr Rata, 35, was badly beaten on Bonnett Rd in Kaitaia while a wedding party was taking place at a nearby home.
He was found by a passer-by, who called emergency services, but died the following day in Whangarei Hospital.
On January 6, police searched three houses on Leatty St in Moerewa and arrested a number of people, but all on unrelated charges such as burglary and drug dealing.