U.S. President Donald Trump offered to allow hundreds of South Korean workers arrested during an immigration raid to stay in the United States, but only one has opted to remain, South Korean officials said on Thursday.

Trump's overture sought to encourage the workers to stay and train Americans, according to the officials. It resulted in a one-day delay to the departure of a chartered plane to bring the workers home.

The plane left the United States shortly before noon. TV footage showed the workers boarding buses outside the barbed-wire clad fences of a detention center at around 2 a.m. on Thursday to go to Atlanta airport.