A group of 13 people, believed to be Mongrel Mob Redcoat members or associates, have been charged after a man was assaulted at his home in Waimarama, Hawke's Bay.
Police say two people have been charged with wounding with intent to cause grievous bodily harm over the attack on Monday afternoon.
The remainder have been charged with participating in an organised crime group.
All are due to appear in Hastings District Court today and December 9.
Police say further arrests are likely.
The injured man has since been released from hospital.