Police are investigating allegations about offences at the Gloriavale community on the West Coast.
Gloriavale Leavers' Support Trust spokeswoman Liz Gregory said the allegations are of sexual offending by a teenage male against multiple boys in the isolated Christian community.
Police confirmed that they "have visited the property in recent days to make initial inquiries into a report received".
Oranga Tamariki deputy chief executive for south children and families services Alison McDonald said her staff had been on site at Gloriavale "over recent days".
The offender, aged 16, is believed to have offended against several boys, but only one complaint was laid with police.