Three people have been arrested in London over allegations that they helped migrants, including Bangladeshi men, make fraudulent asylum claims by pretending to be gay, according to the BBC.
UK immigration enforcement officers carried out raids at several addresses and arrested two people on suspicion of fraud and immigration offences.
A third person was arrested on suspicion of being in the UK illegally.
Authorities allege that the suspected network charged migrants up to £4,500 for fabricated evidence, including staged photographs, fake documents and letters falsely claiming same-sex relationships.
The suspected operation has been linked to Apanjon, a Bangladeshi community LGBT organisation based in Whitechapel, east London. Officials said immigration caseworkers had identified patterns in suspicious asylum claims and had been investigating the organisation for several months.
The Home Office is reviewing more than 100 asylum claims potentially linked to the alleged network. Officials said some claims may have been successful.
The arrests follow a BBC investigation earlier this year that found advisers allegedly helping migrants fabricate stories and evidence to support asylum applications based on sexual orientation.
Home Secretary Shabana Mahmood said those exploiting the asylum system would face prosecution, while stressing that Britain would continue to protect people genuinely fleeing persecution.
The BBC reported that immigration judges had previously criticised some evidence linked to Apanjon as unreliable, including staged photographs submitted in an asylum case.