Shark filmed in Cattawade Sluice on the River Stour
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'Lost' shark filmed in River Stour

4 September 2013 Last updated at 17:12 BST

A shark… in a river… in Essex.

Yes, you read correctly, and it certainly startled Jody Gibbons, who spotted the starry smoothhound shark while he was walking along the River Stour.

It's estimated to be between 4 and 5 feet long - and thought to have got a bit lost!