An FBI raid revealed 57 victims of forced labor living in cramped quarters at a lavish Florida mansion connected to the leaders of a church, federal officials say.

The raid, which targeted a Tampa mansion where one of the leaders lived, was carried out in August, but recently filed court records brought new details to light, including the scale of the organization’s alleged illegal operations, WTVT reported.

David Taylor, 53, and Michelle Brannon, 56, are accused of running a forced labor and money laundering scheme through their church, Kingdom of God Global Church, according to the U.S. Department of Justice. The church is headquartered in Michigan.