Three men are under arrest in North Carolina on charges that they performed illegal castrations in what investigators call a sadomasochistic "dungeon."

They say at least six men traveled from across the U.S. and South America to voluntarily take part in the mutilations. Investigators who searched the home say they found DVD recordings of the castrations.

Sheriff Tom Alexander says the victims met the local men through a Web site that showed men performing sadomasochistic acts at a home in Waynesville, North Carolina.

The sheriff and prosecutor said the victims were willing participants in the procedures.

Michael Mendez, Richard Sciara and Danny Reeves all face charges including maiming and castration, and practicing medicine without a license.