A series of raids have been carried out, including in Birmingham, in a bid to crack down on a scam where immigrants are brought to the UK as ministers of religion and then vanish.
Sixteen addresses across the country were targeted in early morning swoops as part of an ongoing investigation into the Khalsa Missionary Society in Manchester.
It is claimed that immigrants are brought from India to live in the UK as religious workers but then disappear.
Raids were carried out in Birmingham, Slough, Southall, Southampton, Luton, Hounslow, and Leicester.
A Home Office spokesman said:
"This is a large scale operation linked to suspected immigration crime targeting several locations across the UK."