Dolphins stranded on Upanema beach
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Stranded dolphins die on Brazil's Upanema beach

24 September 2013 Last updated at 16:28 BST

About 30 large dolphins beached themselves in north-eastern Brazil and at least seven have died.

The dolphins, known as false killer whales, were stranded on Upanema beach in Areia Branca, between the cities of Fortaleza and Natal.