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.