A 15-year-old girl was the youngest victim in a spate of stabbings in West Auckland during the weekend.
Senior Sergeant Roger Small said the teenager suffered a "minor" wound when she was stabbed at a party in Glen Eden.
A 25-year-old man was also stabbed in the arm at the same event. He was taken to Waitakere Hospital, but had since been released.
Police found the injured man after responding to a call about a large fight at the property around 2am on Saturday, Small said.
Henderson CIB are investigating the stabbings and want to speak to witnesses. Anyone with information can call police on 09 839 0600 or contact Crimestoppers anonymously on 0800 555 111