POOLER, Ga. (AP) — After more than 300 South Korean workers were taken into custody during a raid on an electric battery plant in Georgia, the country’s foreign minister traveled to the U.S. this week in hopes of bringing them home.

Law enforcement agents detained some 475 workers during the raid Thursday at the battery factory under construction on the campus of Hyundai’s sprawling auto plant west of Savannah.

South Korea’s Foreign Ministry said Seoul and Washington were discussing details for the workers’ return. Late Tuesday, the State Department announced that Secretary Marco Rubio will meet with Foreign Minister Cho Hyun at the White House on Wednesday morning.

Here are some things to know about the raid and its aftermath.

Korean Air says a Boeing 747-8i will fly from South Korea

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