The Unification Ministry said a schedule for the return of staff from the Kaesong plant hadn't been completed, and that the South remains open to dialogue with the North to restart the plant.

WSJ: Seoul to Pull Workers out of North Korea

More than 840 South Koreans were set to cross the border Monday to Kaesong, which provides a badly-needed flow of hard currency to a country where many face food shortages, according to Seoul's Unification Ministry.

NPR: SKorea, US Begin Drills As NKorea Threatens War