#watersheads

YEONCHEON, South Korea -- North Korea released water from a border dam without giving prior notice to South Korea on Monday, causing the water levels of a cross-border river downstream to rise dangerously, officials said.The North opened the floodgates of Hwanggang Dam on the western inter-Korean border, sending water into the Imjin River flowing to the South and causing water levels under the river's northernmost Pi...