A Press Association journalist has been released after being questioned by detectives investigating allegations of voicemail hacking.
Royal reporter Laura Elston, 34, was arrested when she attended an appointment at a central London police station at around 3pm.
Scotland Yard said she was questioned on suspicion of intercepting communications, contrary to Section 1 of the Regulation of Investigatory Powers Act (RIPA) 2000.
She was later released on police bail.
The interview was carried out by detectives assigned to Operation Weeting, an investigation launched by the Metropolitan Police in January following new allegations about phone hacking involving the News of the World.
The paper's former royal reporter Clive Goodman and private detective Glenn Mulcaire were jailed in 2007 for intercepting messages from members of the royal household.
The new inquiry was set up following allegations that other famous people also had their messages intercepted.
Three News of the World journalists have been arrested and questioned since the new inquiry was launched but no new charges have been brought.
Last week a woman was also arrested in West Yorkshire by Operation Weeting detectives and later released.
Football pundit Andy Gray became the latest celebrity to settle with the paper's publishers last week, accepting £20,000 in damages for voicemail interceptions. News Group Newspapers reached a similar agreement with actress Sienna Miller, who received £100,000 in damages.