Barclays Plc has been fined 26 million pounds ($43.8 million) for failures in internal controls that allowed a trader to manipulate the setting of gold prices, just a day after the bank was fined for rigging Libor interest rates in 2012.

Britain's Barclays is the first bank to be fined over attempted manipulation of the 95-year-old London gold market daily "fix", although a source familiar with the fine said it was a one-off and not part of a wider investigation into gold price rigging.