SEOUL, Jan 3 (Reuters): The person observed crossing the heavily fortified border from South Korea into North Korea last week is presumed to be a North Korean who had previously defected to the South, Seoul's defence ministry said on Monday.
South Korea's Joint Chiefs of Staff (JCS) had said it carried out a search operation after detecting the person on Saturday on the eastern side of the Demilitarised Zone (DMZ) separating the two Koreas.
