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Crimewatch: Gravesend post office robbery CCTV shown

26 July 2013 Last updated at 20:42 BST

Footage of a violent attempted armed robbery has been featured on BBC Crimewatch.

The attack, captured on CCTV, shows two masked men storm into a post office in Gravesend, Kent, and repeatedly hit a woman with a hammer on 2 July.

Detectives appeared on the BBC One programme on Thursday appealing for witnesses to come forward.

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