Essex Police has executed a warrant at an address in Colchester which they believe to have been a brothel.
The property is one of five across the county that was searched by police during the evening of Wednesday, October 2.
In total, five people were arrested at searches in Brentwood, Basildon, Colchester and London, with three people also being safeguarded by officers.
Essex Police said that it was unable to disclose where in Colchester the suspected brothel was at this time.
Those arrested were a 39-year-old woman from Southend, a 53-year-old woman from Basildon, a 30-year-old man and 34-year-old woman from Poplar and a 47-year-old man from Finsbury Park.
All five remain in police custody for questioning.
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