The headquarters of Deutsche Bank in Frankfurt. Germany's largest bank has been hit with a $2.5 billion fine for manipulating a key interest rate. Seven other banks in various countries have also been fined in the far-reaching scandal. Michael Probst/AP hide caption

itoggle caption Michael Probst/AP

London-based Barclays Bank agreed to pay a $453 million fine over charges it manipulated the London Interbank Offered Rate — LIBOR — a key global interest rate. Oli Scarff/Getty Images hide caption

itoggle caption Oli Scarff/Getty Images