A former British Army employee is the latest person to be arrested over Scotland Yard's long-running inquiry into the alleged corruption of public officials.
The Metropolitan Police said the woman was detained at her home in Nottinghamshire today, on suspicion of conspiracy to commit misconduct in a public office.
The force said the 25-year-old was in custody at a local police station.
She was arrested at 6am by officers working on Operation Elveden, which is investigating corrupt payments to police and public officials.
The woman is the 87th person to be arrested as part of that inquiry.
The operation was originally launched in the fall-out from the phone-hacking scandal at the News of the World, and initially looked into inappropriate payments made to police.
Its remit has since been widened to include payments to all employees of the public purse.
The operation is being supervised by the Independent Police Complaints Commission (IPCC).