The South Korean government announced Sunday that 300 workers who were detained after a massive immigration raid at a Hyundai plant in Georgia will be released and brought home.

U.S. immigration authorities said Friday they detained 475 people, most of them South Korean nationals, when hundreds of federal agents raided Hyundai's sprawling manufacturing site in the state of Georgia.

Kang Hoon-sik, chief of staff for President Lee Jae Myung, said South Korea and the U.S. had finalized negotiations on the workers’ release. He said South Korea plans to send a charter plane to bring the workers home as soon as remaining administrative steps are complete.

Local media reported Foreign Minister Cho Hyun is to leave for the U.S. for talks related to the South Korean workers' releases.

Agents focused on a plant that is still under construction at which Hyundai has partnered with LG Energy Solution to produce batteries for electric vehicles.

The operation was the latest in a long line of workplace raids conducted as part of the Trump administration’s mass deportation agenda. But this one is distinct because of its large size and because the targeted site has been touted as Georgia's largest economic development project.