Part of Wellesley Rd was closed off by police during an operation late on the morning of September 12, an operation understood to be related to the incident.
Police said three women, aged 24, 20 and 17, were arrested and are due back in Napier District Court on September 27.
Two of the women face charges of injuring with intent to injure, assault with a weapon and kidnapping by causing the victim to be confined.
Police said the investigation remains ongoing to identify those involved, and further charges are likely.
- Anyone with information relating to the investigation is asked to contact police on 105, quoting file number 230911/6892.