U.S. Federal Bureau of Investigation

• U.K. Arrests Three in Libor Probe

  By Lindsay Fortado and Liam Vaughan, Bloomberg  |  December 11, 2012

  Former Citigroup trader among those arrested.

• RBS, UBS Traders Said to Face Arrest Within Month in Libor Probe

  By Lindsay Fortado, Bloomberg  |  November 9, 2012

  U.K.'s Serious Fraud Office won't confirm, but notes "significant developments" in case.