A man, reported to be Sun reporter Jamie Pyatt, has been arrested in connection with allegations of corruption, the latest twist in the News of The World phone hacking saga.
Scotland Yard has confirmed a 48-year-old was taken in for questioning over "inappropriate payments to police", as part of Operation Elveden.
Reuters has reported that the man works for the Sun tabloid.
He was arrested at an address outside London at 10.30am on Friday and is currently at a south west London police station.
The news broke after police claimed possible victims of phone hacking by NotW journalists could be as many as 5,800.
The scandal first came to light in July, resulting in the tabloid's closure, News International's chief executive Rebekah Brooks's resignation, and a grilling of media tycoon Rupert Murdoch by a parliamentary select committee.
A High Court judge is due to hear evidence from several alleged victims at a trial in January, and his rulings are expected to provide a blueprint for any following claims.