SEOUL: A South Korean charter plane left for the US on Wednesday to bring back Korean workers detained in an immigration raid in Georgia last week. A total of 475 workers, more than 300 of them South Koreans, were rounded up in the Sept. 4 raid at the battery factory under construction at Hyundai’s sprawling auto plant. US authorities released video showing some being shackled with chains around their hands, ankles and waists, causing shock and a sense of betrayal among many in South Korea, a key US ally.

US officials say the workers - including more than 300 South Koreans - were working illegally.

The government said on Sunday that South Korea would send a charter plane to the United States to retrieve hundreds of workers detained in an immigration raid.