In the largest single workplace raid in a decade, federal authorities arrested 97 people at a Tennessee meat-processing plant on immigration and other charges. Of those, 86 were reportedly arrested on civil immigration charges; 32 were released without explanation and 54 were detained. In addition to the immigration charges, company owners are being investigated for alleged tax evasion and hiring undocumented workers.

The operation was conducted jointly with U.S. Immigration and Customs Enforcement’s Homeland Security Investigations, the Internal Revenue Service, and the Tennessee Highway Patrol.