Mark Williams-Thomas, the man behind the ITV Exposure Jimmy Savile documentary, has tweeted:
Breaking: I can confirm that the man arrested as part of the wider #Savile investigation this morning is Dave Lee Travis
Former Radio 1 DJ Dave Lee Travis has previously denied abuse allegations.
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The success of the No camp is mainly due to Tsipras convincing people a No vote will strengthen their hands in negotiations.
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More than 80 prominent Britons, including Boris Johnson, Russell Brand and former Government ministers, urge Obama to release Aamer.