In London, police looking into claims that a couple held three women for more than 30 years are investigating 13 addresses linked to the suspects.
The inquiry began after one of three alleged victims, a 57 year old Irishwoman, told a charity she had been held against her will for more than 30 years at the property in Lambeth.
The alleged victims are believed to have suffered years of "physical and mental abuse".
The man, who is 73, and woman, aged 67, have been released on bail.
