A freelance journalist has been arrested at his home in Northumberland by police investigating inappropriate payments to public officials.
The 43-year-old man was arrested at 06:30 BST on suspicion of conspiracy to cause misconduct in public office.
Operation Elveden is being conducted by the Metropolitan Police.
It runs alongside Operation Weeting, the Met's phone-hacking inquiry, and Operation Tuleta, a probe into computer hacking and other privacy breaches.
The journalist is the 72nd person to be arrested under Operation Elveden, which is being supervised by the Independent Police Complaints Commission.