Banks slapped with $2.3 billion fine for rate manipulationQuote The banks to be fined are Citigroup, Deutsche Bank, Royal Bank of Scotland, JPMorgan, and Societe Generale. Deutsche has to pay out the biggest fine for conspiring to rig both rates, with a 725 million euros bill. RBS was also fined over the setting of both kinds of rates, and must pay a total of 391 million euros.At the other end of the scale, U.K. broker RP Martin was fined 247,000 euros for one infringement relating to Yen Libor.Investigations into Crédit Agricole, HSBC, JPMorgan and broker Icap are ongoing. UBS got off by ratting out the othersQuoteUBS has previously admitted taking part in the rigging of Yen Libor, but has avoided a 2.5 billion fine by blowing the whistle on other banks. It took part in five violations of regulations uncovered by the EC, while other banks involved took part in 1-3 infringements.