The masses of water turn streets into torrential rivers.
Hundreds of people are trapped in the flooded subway.
Initially, twelve dead are reported.
Zhengzhou - The heaviest rainfall in decades has caused massive flooding in the central Chinese metropolis of Zhengzhou.
As reported by the Chinese state television, twelve dead were found by the morning.
However, more victims were feared.
Saving human lives has "top priority", Chinese President Xi Jinping was quoted by state media as saying.
Storm in Chinese metropolis: 12 dead - further victims feared
Thousands of firefighters and soldiers were deployed to help the people in the city.
Videos could be seen how some of the multi-lane roads had turned into raging rivers.
Cars swam in the water.
The water and electricity supply was interrupted in many places.
Traffic was paralyzed.
The floods also flooded the subway, where hundreds of people were temporarily trapped in trains and also in tunnels, as reported by state media and eyewitnesses on social media.
The water was partly up to their shoulders.
More than 100,000 people were brought to safety in evacuations.
Among them were around 600 seriously ill patients from a Zhengzhou University hospital.
The power in the clinic was out.
Hundreds of guests were also stranded in a hotel.
In the south of Zhengzhou, the dam of the Guojiaju Water Reservoir broke in the early morning hours of Wednesday (local time), as reported by state television.
Details were not initially known.
There was talk of the heaviest rainfall since records began.
“Such rains usually only happen once every 100 years.
The situation is bleak, ”reported the crisis team in the provincial capital of Henan, which has nine million inhabitants, according to the“ China Daily ”.
Cyclone "In-Fa" causes severe weather
Videos of dramatic rescue operations in which people were rescued from torrential brown floods also circulated in the state media and on the Weibo short message service.
Internet users complained, however, that the state censorship also deleted posts.
The unusually heavy rains in Henan were caused by typhoon "In-Fa".
The cyclone also caused severe weather in Zhejiang and Fujian provinces.
The province of Henan has been hit by heavy rains since last week.
The water levels of the Yellow River and Haihe River tributaries exceeded alert levels, Xinhua News Agency reported.
The damage to agriculture runs into the millions.
Severe storms were also reported from southern China, where another typhoon called "Cempaka" hit land near the city of Yangjiang in the province of Guangdong with wind speeds of up to 110 kilometers per hour.
There were also severe floods in Inner Mongolia in northern China.
The weather service warned again on Wednesday of heavy rains in many provinces.
Particularly in the south of China, severe flooding occurs again and again in the summer months, which results in numerous casualties and high economic damage.
Many deaths also result from landslides.
(dpa)
List of rubric lists: © Yuanxiaoqiang / CHINATOPIX / AP / dpa