South Korean vehicles arrive at the customs, immigration and quarantine office in Paju, South Korea, April 27, 2013. The remaining South Korean workers began to leave Kaesong Industrial Complex on Saturday, according to local media. (Xinhua/Park Jin-hee)

Workers returning from the Democratic People's Republic of Korea (DPRK)'s Kaesong industrial complex arrive at the customs, immigration and quarantine office in Paju, South Korea, April 27, 2013. The remaining South Korean workers began to leave Kaesong Industrial Complex on Saturday, according to local media. (Xinhua/Park Jin-hee)

South Korean vehicles arrive at the customs, immigration and quarantine office in Paju, South Korea, April 27, 2013. The remaining South Korean workers began to leave Kaesong Industrial Complex on Saturday, according to local media. (Xinhua/Park Jin-hee)

South Korean vehicles arrive at the customs, immigration and quarantine office in Paju, South Korea, April 27, 2013. The remaining South Korean workers began to leave Kaesong Industrial Complex on Saturday, according to local media. (Xinhua/Park Jin-hee)