Hastings police have arrested eight people after a fight erupted at a five-year-old's birthday party.
The brawl began when a guest associated with the Black Power gang arrived at the party where Mongrel Mob associates were also in attendance, police say.
Officers were called out to the house in Kiwi Place about 10.30pm on Saturday. Police say two officers were assaulted, one of whom was bitten on the arm.
Three women and five men have been charged with disorder offences.