A former member of the armed services has been arrested by detectives investigating alleged corrupt payments to public officials for information.
The 30-year-old was held at around 6am at his home in London today on suspicion of misconduct in public office and conspiracy to cause misconduct in public office.
He was released on bail until late January, Scotland Yard said.
The man is the 78th person arrested as part of Operation Elveden, the inquiry into alleged payments by journalists to public officials for information.
Scotland Yard said in August that it had also interviewed another 19 people under caution, and watchdog the Independent Police Complaints Commission has made three arrests.
Operation Elveden is being run alongside Operation Weeting, an investigation into alleged phone hacking, and Operation Tuleta, a probe into computer hacking and other alleged privacy breaches.