The immigration raid on a Hyundai plant last week could leave other companies scrambling to make changes.

Speaking on CNN's 'State of the Union,' White House border czar Tom Homan said the administration would intensify the focus on workplaces.

Some 400 US agents took part in the immigration raid on the Hyundai facility, detaining hundreds of workers, many South Korean nationals.

South Korea has said that 300 of its nationals detained during the immigration raid would be flown home. Key US politics stories from Sunday 7 September at a glance

Federal and immigration agents conducted a massive raid on a Hyundai facility in Ellabell, Georgia, last week, arresting 475 people.

The federal E-Verify system is supposed to help employers determine whether their workers are legal, but its use isn't always required.

The president's pledge to restore jobs to American workers is running into conflict with other economic goals.

The immigration raid on a Hyundai plant last week could leave other companies scrambling to make changes.

The South Korean companies' metaplant in Georgia was the target of a vast federal immigration raid on September 4, during which 475 people were detained.

The Korean car maker says many of the arrested workers now want to get back home

Last week’s immigration operation at a battery plant highlighted a tactic that companies use to bring in foreign workers to establish new operations.

Three people have died in two years at the South Korean Hyundai-LG battery plant in Ellabell

CEO Jose Muñoz said the delay estimate is based on foreign workers coming back to help.