A boat with a crew of 31 crosses into North Korean waters , Unification Ministry says . There are currently more than 20,000 North Korean defectors in South Korea , according to the South 's Unification Ministry . 31 of the fishermen decide to stay in the the West Sea . The number of defections has risen dramatically in this week .
A boat with a crew of 31 crosses into North Korean waters , Unification Ministry says . 31 of the fishermen decide to stay in the the West Sea . The number of defections has risen dramatically in this week .