The raid at a Hyundai plant was by far the largest single-site anti-immigration swoop by the Trump administration. The incident has caused outrage in South Korea.

South Korean President Lee Jae Myung on Thursday said that the US immigration raid on a Hyundai factory was “bewildering” and could have adverse effects on future South Korean investments in the US.

The raid was the largest single-site anti-immigration operation conducted since US Donald Trump cracked down on immigration, a top political priority since he returned to office in January.

At a press conference, Lee said that the raid is likely to leave South Korean businesses “hesitant” about investing in the United States.