India, Sept. 13 -- A group of South Korean workers who landed at Incheon Airport on Friday after being detained for a week in the United States described their horrific experience during what they called a "military-style" immigration raid at their workplace in Georgia.

The September 6 raid at a battery plant jointly operated by Hyundai Motor and LG Energy Solution turned the spot into what one of the detainees described as "a scene out of a war movie."

A second worker said US government agents had arrived at the site in helicopters and armoured vehicles and had separated workers according to visa type, arresting those on the ESTA visa-waiver programme or with a B-1 business traveller visa.

"I didn't know when I would actually be able ...