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South Korea activist arrested as he steps across border on return from North

Activist No Su-hui, center, shouts "Long Live Reunification" in front of North Korean officials and soldiers, foreground, before crossing the demarcation line between North and South Korea where South Korean officials, at rear, were waiting for him, at the Demilitarized Zone at Panmunjom on July 5, 2012.

Reuters reports — South Korean authorities arrested a pro-North Korea activist as he walked across the rival states' heavily armed border on Thursday ending an unauthorized visit to Pyongyang in alleged violation of a bitterly disputed anti-communism law.

Ro Su-hui, who is a leader of a South Korean group that has maintained friendly ties with North Korean groups, had spent more than three months in Pyongyang attending national events that glorified its two dead leaders and criticized Seoul.

"While in the North I have felt that the North where the leader and the people form a harmonious whole will surely build a thriving nation thanks to political stability and strong economic potential," Ro was quoted as saying on Tuesday by the North's official KCNA news agency. Read the full story.

Kim Kwang Hyon / AP

No Su-hui, left, waves a flag depicting a unified Korean Peninsula to a crowd of North Korean supporters before crossing the demarcation line into South Korea on July 5, 2012.

Kim Kwang Hyon / AP

No Su-hui, center, is detained by South Korean officials as North Korean officials, foreground, look on, immediately after No crossed the demarcation line on July 5, 2012. South Korean police arrested the activist for making an extended trip to Pyongyang without South Korean government approval as required by law.

Dong-A Ilbo / AFP - Getty Images

Ro Su-hui is led away tied up and cuffed by South Korean security officials towards a police station in the border city of Paju on July 5, 2012.