Photo taken on Sept. 18, 2018 shows a flooded street in Yangchun, south China's Guangdong Province. The city of Yangchun was hit by rainstorm after Super Typhoon Mangkhut ravaged Guangdong Province on Sunday. As of Tuesday, part of the city is still flooded, while disaster relief work is underway. (Xinhua/Zhou Ke)

Rescuers transfer residents stranded by flood in Yangjiang, south China's Guangdong Province, Sept. 18, 2018. The city of Yangchun was hit by rainstorm after Super Typhoon Mangkhut ravaged Guangdong Province on Sunday. As of Tuesday, part of the city is still flooded, while disaster relief work is underway. (Xinhua/Zhou Ke)

Photo taken on Sept. 18, 2018 shows a flooded street by the Mojiang River in Yangchun, south China's Guangdong Province. The city of Yangchun was hit by rainstorm after Super Typhoon Mangkhut ravaged Guangdong Province on Sunday. As of Tuesday, part of the city is still flooded, while disaster relief work is underway. (Xinhua/Zhou Ke)

Photo taken on Sept. 18, 2018 shows a flooded street by the Mojiang River in Yangchun, south China's Guangdong Province. The city of Yangchun was hit by rainstorm after Super Typhoon Mangkhut ravaged Guangdong Province on Sunday. As of Tuesday, part of the city is still flooded, while disaster relief work is underway. (Xinhua/Zhou Ke)