China News Service, July 2 (Xinhua) According to the official Weibo news of the Beijing Meteorological Bureau, the Beijing Water Affairs Bureau and the Beijing Meteorological Bureau jointly issued a mountain flood disaster risk warning. The risk of local flash floods in Mentougou, Changping, Yanqing, Huairou, and Miyun is high, reminding the general public to avoid playing in mountain rivers, valleys and valleys, and the local governments should strengthen prevention.