Follow up -INA

Seoul detained a North Korean soldier after crossing the border this week in what is believed to be an attempted defection, South Korea's Yonhap news agency reported on Wednesday.

"The army detained a North Korean soldier on the Central Front on Tuesday night, and specialized authorities are currently investigating the details," Yonhap quoted the Seoul Joint Chiefs of Staff as saying in a letter to the media.

Tens of thousands of North Koreans have fled to South Korea since the island was divided by the war in the 1950s.

Most of them go overland to neighboring China first, then enter a third country such as Thailand before eventually reaching South Korea.