Seoul, Sept. 7 -- A senior official at South Korea's presidential office said on Sunday that negotiations for the release of South Korean workers detained by a recent US immigration raid in Georgia have concluded, adding that a chartered plane would head for the US if administration procedures are completed, Yonhap reported.

Presidential chief of staff Kang Hoon-sik made the announcement after hundreds of South Koreans were taken into custody during the raid Thursday on a battery plant construction site operated by South Korean companies in Bryan County.

"There are still administrative procedures left," Kang said during a senior-level meeting between the ruling Democratic Party and the government. "Once the procedures are complete, the ...