South Korean Foreign Minister Cho Hyun said Saturday he may travel to the United States to address the detention of hundreds of South Koreans at a Georgia battery plant construction site.

Cho confirmed that more than 300 of the 457 people detained in the raid were South Korean nationals, calling the arrests “deeply concerning.” He vowed swift action, including dispatching senior ministry officials to the site and holding consultations in Washington if necessary.

The crackdown took place at HL-GA Battery Co., a Hyundai Motor–LG Energy Solution joint venture near Savannah, Georgia. U.S. officials said the raid, the largest in Homeland Security Investigations history, targeted unlawful employment practices.

While President Trump defended the arrests as enforcement against “illegal aliens,” Seoul raised concerns about workers’ rights and business impacts. LG Energy Solution suspended U.S. business trips and confirmed 47 detained employees. Construction has paused as investigations continue, with most detainees held at a Georgia detention center.

South Korea has urged Washington to resolve the matter quickly to protect its citizens and safeguard ongoing investment projects.