Workers detained in a raid at the battery plant on the Hyundai Metaplant campus near Savannah were expected to be released to return to South Korea on Wednesday.

Korean Air said Tuesday it would operate a charter flight to Atlanta on Wednesday using a Boeing 747.

South Korea’s Ministry of Foreign Affairs said it was talking with U.S. officials about letting the plane return home with the released workers as soon as possible, but that the plane cannot depart from the U.S. on Wednesday as South Korea earlier wished because of an unspecified reason involving the U.S. side, according to The Associated Press .

U.S. Secretary of State Marco Rubio was scheduled to meet with South Korea Foreign Minister Cho Hyun at the White House on Wednesday morning, according to Rubio’s public schedule

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