Hundreds of federal agents descended on a sprawling site where Hyundai manufactures electric vehicles in Georgia and detained 475 people, most of them South Korean nationals.

This is the latest in a long line of workplace raids conducted as part of the Trump administration’s mass deportation agenda. But the one on Thursday is distinct because of its large size and the fact that it targeted a manufacturing site state officials have long called Georgia’s largest economic development project.

The detainment of South Korean nationals also sets it apart, as they are rarely caught up in the Trump administration’s immigration crackdown, which data show has focused on Latinos.

Video released by U.S. Immigration and Customs Enforcement on Saturday showed a caravan of vehicles driving up to the site and then federal agents directing workers to line up outside. Some detainees were ordered to put their hands up against a bus as they were frisked and then shackled around their hands, ankles and waist. Others had plastic ties around their wrists as they boarded a Georgia inmate-transfer bus.

Here are some things to know about the raid and the people impacted:

The workers detained

South Korea’s Foreign Minister Cho Hyun said Saturday that more than 300 South Koreans were among the 475 people detained.

Some of them worked for the plant operated by HL-GA Battery Co., a joint venture by Hyundai and LG Energy Solution that is set to open next year, while others were employed by contractors and subcontractors at the construction site, according to Steven Schrank, the lead Georgia agent of Homeland Security Investigations.

He said that some of the detained workers had illegally crossed the U.S. border, while others had entered the country legally but had expired visas or had entered on a visa waiver that prohibited them from working.

But an immigration attorney representing two of the detained workers said his clients arrived from South Korea under a visa waiver program that allows them to travel for tourism or business for stays of 90 days or less without obtaining a visa.

Attorney Charles Kuck said one of his clients has been in the U.S. for a couple of weeks, while the other has been in the country for about 45 days, adding that they had been planning to return home soon.

The detainees also included a lawful permanent resident who was kept in custody for having a prior record involving firearm and drug offenses, since committing a crime of “moral turpitude” can put their status in jeopardy, said Lindsay Williams, a public affairs officer for U.S. Immigration and Customs Enforcement, on Saturday.

Williams denied reports that U.S. citizens had been detained at the site, since “once citizens have identified themselves, we have no authority.”

Hyundai Motor Co. said in a statement Friday that none of its employees had been detained as far as it knew and that it is reviewing its practices to make sure suppliers and subcontractors follow U.S. employment laws. LG told the Associated Press that it couldn’t immediately confirm how many of its employees or Hyundai workers had been detained.

The South Korean government expressed “concern and regret” over the operation targeting its citizens and is sending diplomats to the site.

“The business activities of our investors and the rights of our nationals must not be unjustly infringed in the process of U.S. law enforcement,” South Korean Foreign Ministry spokesperson Lee Jaewoong said in a televised statement from Seoul.

Most of the people detained have been taken to an immigration detention center in Folkston, Ga., near the Florida state line. None of them have been charged with any crimes yet, Schrank said, but the investigation is ongoing.

Family members and friends of the detainees were having a hard time locating them or figuring out how to get in touch with them, James Woo, communications director for the advocacy group Asian Americans Advancing Justice-Atlanta, said Saturday in an email.

Woo added that many of the families were in South Korea because many of the detainees were in the United States only for business purposes.

Raid is the result of a months-long investigation

The raid was the result of a months-long investigation into allegations of illegal hiring at the site, Schrank said.

In a search warrant and related affidavits, agents sought items including employment records for current and former workers, timecards and video and photos of workers.

Court records filed last week indicated that prosecutors do not know who hired what it called “hundreds of illegal aliens.” The identity of the “actual company or contractor hiring the illegal aliens is currently unknown,” the U.S. attorney’s office wrote in a Thursday court filing.

The sprawling manufacturing site

The raid targeted a manufacturing site widely considered one of Georgia’s largest and most high-profile.

Hyundai Motor Group started manufacturing EVs at the $7.6-billion plant a year ago. Today, the site employs about 1,200 people in a largely rural area about 25 miles west of Savannah.

Agents homed in on an adjacent plant that is still under construction at which Hyundai has partnered with LG Energy Solution to produce batteries that power EVs.

The Hyundai site is in Bryan County, which saw its population increase by more than a quarter in the early 2020s and stood at almost 47,000 residents in 2023, the most recent year data are available. The county’s Asian population went from 1.5% in 2018 to 2.2% in 2023, and the growth was primarily among people of Indian descent, according to U.S. Census Bureau figures.

Raid was the ‘largest single site enforcement operation’

The Trump administration has targeted an array of businesses in its workplace raids, including farms, construction sites, restaurants, car washes and auto repair shops. But most have been smaller, including a raid the same day as the Georgia one in which federal officers took away dozens of workers from a snack-bar manufacturer in Cato, N.Y.

Other recent high-profile raids have included one in July targeting Glass House Farms, a legal marijuana farm in Camarillo. More than 360 people were arrested in one of the largest raids since Trump took office in January. Another took place at an Omaha meat production plant and involved dozens of workers being taken away.

Schrank described the one in Georgia as the “largest single site enforcement operation” in the agency’s two-decade history.

The majority of the people detained are Koreans. During the 12-month period that ended Sept. 30, 2024, 46 Koreans were deported out of more than 270,000 removals for all nationalities, according to Immigration and Customs Enforcement.

Georgia Gov. Brian Kemp and other state Republican officials, who had courted Hyundai and celebrated the EV plant’s opening, issued statements Friday saying all employers in the state were expected to follow the law.

Asian Americans Advancing Justice-Atlanta described the raid in a joint statement as “unacceptable.”

“Our communities know the workers targeted at Hyundai are everyday people who are trying to feed their families, build stronger communities, and work toward a better future,” the statement said.

Sammie Rentz opened the Viet Huong Supermarket less than 3 miles from the Hyundai site six months ago and said he worries business may not bounce back after falling off sharply since the raid.

“I’m concerned. Koreans are very proud people, and I bet they’re not appreciating what just happened. I’m worried about them cutting and running, or starting an exit strategy,” he said.

Ellabell resident Tanya Cox, who lives less than a mile from the Hyundai site, said she had no ill feelings toward Korean nationals or other immigrant workers at the site. But few neighbors were employed there, and she felt like more construction jobs at the battery plant should have gone to local residents.

“I don’t see how it’s brought a lot of jobs to our community or nearby communities,” Cox said.

Golden writes for the Associated Press. AP writer Mike Schneider in Orlando, Fla., contributed to this report.