This is concerning that a North Korean boat is able to pull right into the harbor at Samcheok and the crew able to get out, walk around, and ask to use phone with no authorities there to detain them:
The South Korean military failed to detect a North Korean boat that freely sailed in its waters for four days – even after its crew moored in an eastern harbor and asked to use a phone, the JoongAng Ilbo learned Wednesday.
The military also faced fire for an obviously false initial announcement about how the wooden boat and its four crews were discovered in Samcheok Harbor in Gangwon on Saturday. After questioning, two of the crew defected to the South, while the other two returned to the North through the border village of Panmunjom on Tuesday.
Joong Ang Ilbo
You can read more at the link, but also keep in mind that Samcheok is not a South Korean community adjacent to the DMZ. It is pretty far south from the maritime border between the two countries.
