Seoul announced that negotiations with the United States for the release of South Korean workers detained during an operation by U.S. immigration authorities have “concluded” and that they will soon be freed and returned home, AFP reported.

The detention affected over 300 workers at a Hyundai-LG battery plant under construction in the southern state of Georgia. The operation in the city of Ellabell marked the largest single-site detention to date in President Donald Trump’s national anti-immigrant campaign and surprised officials in Seoul.

“Thanks to the swift and coordinated response… negotiations for the release of the detained workers have concluded,” said Kang Hoon-sik, chief of staff to President Lee Jae-myung, adding that only administrative procedures remain, after which a charter flight will be arranged to return the citizens home.

Videos of the operation released by U.S. authorities show detained workers in handcuffs with leg chains being loaded onto a bus for prisoner transport.

In an effort to mitigate the consequences, a senior director from LG Energy Solution traveled to Georgia. “The most urgent priority now is the swift release of both our employees and those of our partner companies,” Kim Ki-su told reporters before the flight.

LG Energy Solution clarified that among those detained were 47 of its employees—46 South Koreans and one Indonesian. The company added that about 250 of the detainees were subcontractor employees, most of whom are South Korean. |BGNES