Three people have suffered seriously injuries in a "horrendous" home invasion in Masterton on Monday.
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Detective Senior Sergeant Haley Ryan said at around 9.15pm two women and a man entered a home in Renall St and attacked three people.
Two of the victims suffered facial injuries and one sustained bruising to her arms and legs.
A man required facial surgery due to the severity of his injuries.
A weapon was used in the attack.
"We want to find the three people responsible for this horrendous attack and hold them to account," Ryan said.
The male offender is described as tall and skinny, in his early 20s and wearing a grey face mask.
Both of the female offenders were aged between 16 and 18, and were around 164cm tall.
One had shoulder length black hair and one had shoulder length brown hair, possibly with a little bit of purple through it.
“There will be people in our community who know who these people are, and we want to hear from you.”
If you can help, please call Detective Gillian Flower at Masterton Police Station.
Information can also be provided anonymously via Crimestoppers on 0800 555 111.