Federal agents detain hundreds of workers at Hyundai battery plant in Georgia, sparking diplomatic tensions between the U.S. and South Korea.

ATLANTA/WASHINGTON/SEOUL >> Hundreds of workers at a Hyundai Motor car battery facility under construction in Georgia were detained in a major raid by U.S. authorities late on Thursday, stopping work on a plant that is one of the Korean automaker’s major investments in the U.S.

Federal agents detained 475 workers in a raid at a Hyundai battery plant in Georgia, calling it the largest single-site operation in Homeland Security history.