More than 300 South Koreans were among 475 people arrested by US immigration officials in a raid on a Hyundai-LG battery plant being built in the southern US state of Georgia, the foreign minister in Seoul said.
The operation in the town of Ellabell was the largest single-site raid carried out so far under US President Donald Trump’s nationwide anti-migrant drive, a US official said.
Footage of the raid released by US authorities showed detained workers, in handcuffs and with chains around their ankles, being loaded onto an inmate transportation bus.
The raid stemmed from a probe into “allegations of unlawful employment practices and serious federal crimes” at the Hyundai Motor-LG Energy Solution joint venture plant, Steven Schrank, a Homeland Security Investigations special agent in Atlanta, told reporters on Friday.
“This was not an immigration operation where agents went into the premises, rounded up folks and put them on buses,” he said.
“This has been a multi-month criminal investigation.”
Earlier, South Korean Foreign Minister Cho Hyun said at an emergency meeting in Seoul that, of the 475 arrested, “more than 300 are believed to be our nationals”.
“We are deeply concerned and feel a heavy sense of responsibility over this matter,” Cho said on Saturday.
First Vice Foreign Minister Park Yoon-joo raised the issue in a telephone call with US Under Secretary of State for Political Affairs Allison Hooker, voicing regret over the crackdown and the release of footage showing the Korean workers’ arrest.
Park said “the economic activities of Korean companies investing in the United States and the rights and interests of Korean citizens must not be unfairly infringed upon during US law enforcement operations”, his ministry said.
He had “asked the State Department to actively work to ensure a fair and swift resolution to this matter”, the statement added.

In the latest developments, Kang Hoon-sik, chief of staff to President Lee Jae-myung, confirmed that negotiations with the United States over the release of the workers had concluded.
He ssaid, “Thanks to the swift, coordinated response of government ministries, business groups and companies, negotiations for the release of the detained workers have been concluded.
“Only administrative procedures remain, after which a chartered flight will depart to bring them home.”
President Donald Trump’s defence of the US raid as ICE “just doing its job” came as South Korea voiced strong criticism of the action.
The plant where the raid took place is intended to supply batteries for electric vehicles.
LG Energy Solution said on Saturday that 47 of its employees had been arrested – 46 South Koreans and one Indonesian.
The company also said about 250 of those arrested were believed to be employed by its contractor, and most of them were South Koreans.
South Korea, Asia’s fourth-biggest economy, is a key automaker and electronics producer with multiple plants in the United States.
Its companies have invested billions of dollars to build factories in the United States in a bid to access the US market and avoid tariff threats from Trump.
Lee met Trump during a visit last month, and Seoul pledged US$350bil (RM1.5 trillion) in US investment in July.
Trump has promised to revive the manufacturing sector in the United States, while also vowing to deport millions of undocumented migrants. — AFP/The Korea Herald/ANN
