People look out at cars sitting in floodwaters after heavy rains hit the city of Zhengzhou in China's central Henan province on July 21, 2021. (Photo by AFP Photo/China Stringer Network)





This photo taken on July 20, 2021 shows a woman sitting on a fence on a flooded street following heavy rains in Zhengzhou in China's central Henan province. (Photo by AFP Photo/China Stringer Network)





In this photo released by Xinhua News Agency, residents move their belongings across a flooded street in Zhengzhou in central China's Henan province on Wednesday, July 21, 2021. (Photo by Zhu Xiang/Xinhua via AP Photo)





This photo taken on July 20, 2021 shows a man riding a bicycle through flood waters along a street following heavy rains in Zhengzhou in China's central Henan province. (Photo by AFP Photo/China Stringer Network)





Damaged cars rest on debris after heavy rains hit the city of Zhengzhou causing floods in China's central Henan province on July 21, 2021. (Photo by AFP Photo/China Stringer Network)





This photo taken on July 20, 2021 shows people pushing a van through flood waters along a street following heavy rains in Zhengzhou in China's central Henan province. (Photo by AFP Photo/China Stringer Network)





A man rides a bicycle through a flooded intersection in Zhengzhou in central China's Henan Province, Tuesday, July 20, 2021. China's military has blasted a dam to release floodwaters threatening one of its most heavily populated provinces. The operation late Tuesday night in the city of Luoyang came after several people died in severe flooding in the Henan provincial capital of Zhengzhou, where residents were trapped in the subway system and left stranded at schools, apartments and offices. (Photo by Chinatopix via AP Photo)





A man drives his motorcycle through a flooded street following a heavy rain in Zhengzhou in China's Henan province on July 21, 2021. At least 25 people have died including a dozen passengers trapped in a flooded subway after torrential rains inundated central China, paralysing several cities and causing millions of dollars in damage. (Photo by Noel Celis/AFP Photo)





A man holding a baby wades through a flooded road following heavy rainfall in Zhengzhou, Henan province, China on July 22, 2021. (Photo by Aly Song/Reuters)





People ride a front loader as they wade through a flooded road following heavy rainfall in Zhengzhou, Henan province, China on July 22, 2021. (Photo by Aly Song/Reuters)





A man stands on a stranded vehicle on a flooded road following heavy rainfall in Zhengzhou, Henan province, China on July 22, 2021. (Photo by Aly Song/Reuters)





Workers carry out cleaning work at the First Affiliated Hospital of Zhengzhou University, which faces water and power shortage due to heavy rainfall in Zhengzhou, Henan province, China on July 21, 2021. (Photo by China Daily via Reuters)





Road collapses after severe flooding and landslides in recent days have hit the county-level Gongyi city, near Zhengzhou, in central Chinas Henan province on July 22, 2021. (Photo by Jade Gao/AFP Photo)





People wade through a flooded street following a heavy rain in Zhengzhou, in China's Henan province on July 22, 2021. (Photo by Noel Celis/AFP Photo)





People look at cars sitting in floodwaters following heavy rains, in Zhengzhou in China's central Henan province on July 22, 2021. (Photo by Noel Celis/AFP Photo)





People on a makeshift raft make their way through a flooded road following heavy rainfall in Zhengzhou, Henan province, China on July 22, 2021. (Photo by Aly Song/Reuters)





People clear muds out from their residences after severe flooding and landslide in recent days have hit the county-level Gongyi city, near Zhengzhou, in central Chinas Henan province on July 22, 2021. (Photo by Jade Gao/AFP Photo)





Men stand on a vehicle on a flooded road following heavy rainfall in Zhengzhou, Henan province, China on July 23, 2021. (Photo by Aly Song/Reuters)





A woman carrying a child and belongings wades through floodwaters following heavy rainfall in Zhengzhou, Henan province, China on July 23, 2021. (Photo by Aly Song/Reuters)





People ride on a front loader as they make their way through floodwaters following heavy rainfall in Zhengzhou, Henan province, China on July 23, 2021. (Photo by Aly Song/Reuters)