BEIJING, July 21 (Reuters) - At least 25 people have died in China's flood-stricken central province of Henan, a dozen of them in a subway line in its capital that was drenched by what weather officials called the heaviest rains for 1,000 years.
About 100,000 people have been evacuated in Zhengzhou, the capital, where rail and road transport have been disrupted, while dams and reservoirs have swelled to warning levels while thousands of troops launched a rescue effort in the province.
City authorities said more than 500 people were pulled to safety from the flooded subway, as social media images showed train commuters immersed in chest-deep waters in the dark and one station reduced to a large brown pool.
"The water reached my chest," a survivor wrote on social media. "I was really scared, but the most terrifying thing was not the water, but the diminishing air supply in the carriage."
The rain halted bus services in the city of 12 million people about 650 km (400 miles) southwest of Beijing, said a resident surnamed Guo, who had to spend the night at his office.