A man has been arrested on rape charges following a joint investigation by Hawke's Bay Police and Immigration New Zealand.
Police said a 44-year-old man has been arrested on three rape charges and is due to appear in the Hastings District Court on Thursday.
Police said further charges are likely to follow.
As a result of the search warrant issued, two migrants were also served Deportation Liability Notices and Immigration New Zealand enquiries are continuing.
Operation Wentworth was launched after a victim complained to Immigration New Zealand about migrant exploitation and potential human trafficking last week.
This complaint was referred to Hawke's Bay Police.
"We urge anyone who may have been a victim of similar offending in the Hawke's Bay to come forward to Police," a police spokesperson said.
"If you are a migrant, and think you are being exploited, do not be afraid to ask Immigration or Police for help."
Police said they wanted to assure any further victims that any complaints will be taken seriously.
"We encourage anyone to contact Police on 111 and quote file number 231129/1010 or call Crimestoppers anonymously on 0800 555 111, the spokesperson said.
"As this investigation is ongoing we are unable to provide anything further at this time."
