Flooding has forced the evacuation of more than a quarter-million people in northern China along its border with North Korea, state media said Monday. Heavy rains over the last several days caused the Yalu river, which marks the border, to breach its banks, although the water level had started to fall late Sunday, the official Xinhua News Agency state media said Monday. It said four people died, including a couple in their 70s and a mother and son, after their homes in Dandong were swept away by flash floods. Xinhua said 253,500 residents have been evacuated after the Yalu rose to its highest level in a decade. An official with the Water Resources Department in Liaoning province, where Dandong is located, confirmed that four people had died though he was unable to provide details.