The Imjin River separates North Korea (top) and the South in this picture taken from the South in Paju, north of Seoul September 16, 2013. South Korea’s military shot and killed a man who undertook a rare attempt to enter North Korea on Monday by floating across the Imjin River that runs near the heavily militarised border, an official in Seoul said. It was not clear whether the man was a South Korean, the official said on condition of anonymity. The military was still trying to recover the body and investigating the incident, he said. South Korea’s Yonhap news agency said South Korean guards had called out to the man to return. But he ignored the instructions, jumped into the Imjin River and clung to a buoy to try to float across. REUTERS/Lee Jae-Won (SOUTH KOREA – Tags: MILITARY POLITICS)