Thousands of Chinese troops fought to avert further disasters last night after "extremely dangerous" cracks appeared in a massive dam, and hydropower stations were said to be badly damaged, after Monday's earthquake. As the official death toll rose to almost 15,000 - with another 26,000 still buried and 1,400 missing in Sichuan province alone - the state media warned that the city of Dujiangyan and much of the Chengdu plain would be swamped, if the Zipingpu hydropower dam burst.
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