AU.S. national is in custody in North Korea after crossing into the country from South Korea, according to United Nations Command, with South Korean media identifying them as a U.S. Army soldier.
In a tweet, U.N. Command, which provides support to the Republic of Korea, said a U.S. national on an "orientation tour" of the Joint Security Area had crossed into North Korea "without authorization."
The Joint Security Area refers to a location used for diplomatic relations between North and South Korea.
"A U.S. National on a JSA orientation tour crossed, without authorization, the Military Demarcation Line into the Democratic People's Republic of Korea (DPRK)," U.N. Command wrote on Tuesday. The Military Demarcation Line is considered the border between territory controlled by Pyongyang and that under Seoul's jurisdiction.
"We believe he is currently in DPRK custody and are working with our KPA counterparts to resolve this incident," it wrote, referring to North Korea by its official title of the Democratic People's Republic of Korea.