U.S. immigration officials say some 475 people were detained during an immigration raid at a sprawling Georgia site where South Korean auto company Hyundai manufactures electric vehicles. South Korean Foreign Ministry spokesperson Lee Jaewoong described the number of detained South Koreans as "large" though he did not provide an exact figure. No charges were immediately announced. Officials from Homeland Security Investigations say the raid resulted from a monthslong investigation into allegations of illegal hiring at the site and was the largest single-site enforcement operation in the agency's two-decade history.