Tidal bore in the Qiantang River, China
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Tidal bore causes panic in China's Haining city

22 August 2013 Last updated at 19:15 BST

More than 30 people have been injured by a tidal bore in the Qiantang River in the eastern Zhejiang Province of China.

Given extra impetus by a typhoon, the huge and powerful tidal wave gathered momentum and crashed into the river bank in the city of Haining.

Krystyna Gajda reports.