LONDON (AFP) - Britain's Serious Fraud Office said on Monday that two former brokers have been charged with conspiring to manipulate the Libor interbank lending rate.
"Terry Farr and James Gilmour, former brokers at RP Martin Holdings Limited, have today been charged with offences of conspiracy to defraud in connection with the investigation by the Serious Fraud Office into the manipulation of Libor," the office said in a statement.
The men will appear in court at a later date, it said, adding that its probe into Libor manipulation would continue.
Gilmour, 48, was charged with one count of conspiracy to defraud. Farr, 41, was charged with two counts of the same offence.
The development comes after the office filed similar charges against former UBS and Citigroup trader Tom Hayes last month.
All three men were arrested in Britain last December as part of the investigation.
Libor is calculated daily, using estimates from banks of their own interbank rates. However, the system has been found to be open to abuse, with some traders lying about borrowing costs to boost trading positions or make their bank seem more secure.
The Libor scandal erupted last year when British bank Barclays was fined 290 million pounds (S$553 million) by British and United States regulators for attempted manipulation of Libor and Euribor interbank rates between 2005 and 2009.
The Royal Bank of Scotland and Swiss lender UBS have also received heavy fines over alleged rigging of Libor. Euribor is the euro zone equivalent.
Libor or the London Interbank Offered Rate is the umbrella term for benchmark rates that underpin the terms of US$500 trillion (S$632 trillion) of contracts from mortgages to the cost of corporate lending.
Last week meanwhile, Britain announced that NYSE Euronext, the owner of the New York Stock Exchange, would take over management of Libor early next year.
That followed a review which recommended that industry body the British Bankers' Association should be stripped of its responsibility for setting Libor after widespread rate-rigging was found to have taken place.