Metropolitan Police on Operation Elveden have arrested a 40-year-old prison officer in Kent.
The arrest was made after information was passed to police from a News Corporation management standards meeting.
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Ireland's new laws on gay marriage will be enacted by the end of July, with the first ceremonies likely in the autumn.
Stars such as Simon Cowell and Stephen Fry called on their Twitter followers to retweet missing person appeals for 24 hours.
Norwich have been promoted to the Premier League after a 2-0 victory against Middlesbrough at Wembley Stadium.