Federal immigration authorities detain nearly 50 immigrants in South Carolina following a two-year investigation involving fake identification documents, according to multiple reports. The case centers on identity theft and the alleged use of counterfeit or fraudulent documents connected to hiring at a metal casting business. Authorities say Immigration and Customs Enforcement (ICE) takes 48 workers into custody after reviewing allegations of immigration violations tied to the investigation. State officials also announce criminal charges against six people, including two top managers at the plant, who are accused in connection with knowingly using or hiring workers with fake documentation. Reports describe the action as part of a coordinated federal and state effort, with state Attorney General Alan Wilson speaking at a news conference. The detained workers are held by ICE while the legal process continues. Across the sources, the timelines and main figures are consistent: a two-year probe, 48 detainees, and six individuals facing state charges, including senior management at the facility.