Buses carrying workers from South Korea who were detained last week in an immigration raid at a battery factory were travelling on Thursday from a detention centre in southeast Georgia to Atlanta, where a charter plane was waiting to take them home. More than 300 Koreans were among about 475 workers detained during last week’s raid at the battery factory under construction on the campus of Hyundai’s sprawling auto plant west of Savannah. Foreign Ministry has said that a Korean Air Boeing 747-8i that arrived in Atlanta on Wednesday will depart at noon on Thursday with the workers on board. The workers had been held at an immigration detention centre in Folkston, 285 miles (460 kilometres) southeast of Atlanta. South Korea’s Foreign Ministry confirmed that US authorities have released the 330 detainees — 316 of them Koreans.