Police today swooped on three homes in Chelsea and Earls Court which are believed to be at the centre of a human trafficking and prostitution racket.
A 40-year-old man was arrested on suspicion of trafficking women into the UK following the afternoon raids, which were carried out by the Met's human exploitation and organised crime command.
No details of the locations have been released, but a police spokesman said two of the residential properties were in the 'exclusive area of Chelsea'.
The man who was arrested is thought to be part of a criminal network stretching into Russia and Europe which has been operating in London for at least four years.
He is believed to have recruited vulnerable young Eastern European women to come to the UK by promising they will make large amounts of money as waitresses, shop assistants or dancers.
Once here, he is said to have taken the girls' identification and travel documents and held each of them in a debt bond of up to £80,000, which they were forced to pay off by working as prostitutes and charging clients up to £200 a visit.
The women are believed to have been threatened with violence and plied with ecstasy and cocaine.
The man was taken to a central London police station where he is being questioned.