<p>Beijing, China: China&#39;s Ministry of Water Resources activated a Level-IV flood emergency response for six provincial-level regions Sunday.</p> <p>The response was launched in Hunan, Guangdong, Guangxi, Chongqing, Sichuan and Guizhou.</p> <p>China has a four-tier emergency response system, with Level I being the most severe response.</p> <p>From Sunday to Tuesday, heavy rainfall will sweep the six provincial-level regions, with parts of the areas expected to see extremely heavy rainstorms.</p> <p>Water levels of multiple rivers across the regions are set to rise, with small and medium-sized rivers in rainstorm-hit areas at risk of floods exceeding warning levels. Hilly areas are also prone to mountain torrent disasters.</p> <p>The ministry has issued notices to local water authorities and river basin management bodies to roll out targeted flood prevention arrangements.</p>