A plant employee stands near a refrigeration unit as business continues at this Koch Foods Inc., plant in Morton, Miss., Thursday, Aug. 8, 2019, following Wednesday's raid by U.S. immigration officials. In an email Thursday, U.S. Immigration and Customs Enforcement spokesman Bryan Cox said more than 300 of the 680 people arrested Wednesday have been released from custody. (AP Photo/Rogelio V. Solis)