Three people have been arrested by police investigating allegations of inappropriate payments to public officials by journalists, Scotland Yard said.
A 39-year-old serving officer with Wiltshire Police was arrested at his home in the county by officers working on Operation Elveden, the Metropolitan Police said.
At the same time a 51-year-old journalist was arrested at his home in Bristol and a 32-year-old journalist was held at his house in south-east London, both on suspicion of conspiracy to corrupt and conspiracy to cause misconduct in a public office.
A Metropolitan Police spokesman said: "Today's arrests are the result of information provided to police by News Corporation's management standards committee.
"They relate to suspected payments to a public official and suspected disclosure of confidential information by a police officer and are not about seeking journalists to reveal confidential sources in relation to information that has been obtained legitimately."
The arrests bring the number of people arrested in Operation Elveden to 50.