South Korea’s military says an unidentified North Korean man crossed the heavily fortified land border separating the two Koreas and is in custody.

A North Korean man who identified himself as a civilian crossed the heavily fortified military demarcation line between the two Koreas and was taken into custody, the South's military said Friday. The individual was picked up by the South Korean military on Thursday night,

South Korean authorities are investigating the incident, which comes amidst heightened tensions between the two countries