Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. 7 North Koreans Sail to South Korea VOA News 22 December 2009 South Korean media say seven North Koreans have sailed to South Korea on a small boat over the disputed Yellow Sea border. The Yonhap news agency said Coast Guard officers found the group Monday afternoon after they crossed the border off of South Korea's western coast. Authorities were questioning the North Koreans about whether they were defecting or simply drifted to the south by accident. The incident comes as North Korea on Monday designated the border waters a "firing zone" and warned South Korea's military to stay out. The two Koreas have had two naval clashes in the contested waters in the past decade. South Korea's Unification Ministry says more than 16,000 North Koreans have defected to the South since the end of the Korean War in 1953. Almost all of those have come over the past 10 years. South Korean media say seven North Koreans have sailed to South Korea on a small boat over the disputed Yellow Sea border. The Yonhap news agency said Coast Guard officers found the group Monday afternoon after they crossed the border off of South Korea's western coast. Authorities were questioning the North Koreans about whether they were defecting or simply drifted to the south by accident. The incident comes as North Korea on Monday designated the border waters a "firing zone" and warned South Korea's military to stay out. The two Koreas have had two naval clashes in the contested waters in the past decade. South Korea's Unification Ministry says more than 16,000 North Koreans have defected to the South since the end of the Korean War in 1953. Almost all of those have come over the past 10 years. Some information for this report was provided by AFP and Reuters. .