The Metropolitan Police has apologised to victims of the Westminster "honeytrap" scandal after it accidentally sent an email which named all of them.
The force said it was referring itself to data watchdog the Information Commissioner over the breach.
The Met is investigating flirtatious messages being sent by someone calling themselves "Charlie" or "Abi" to as many as 20 people including MPs, staffers and political journalists.
A detective sent potential victims an email updating them on the case, but inadvertently copied in all of those involved, revealing to the recipients their names and email addresses.