Royal Bank of Scotland Group Plc managers condoned andparticipated in the manipulation of global interest rates,indicating that wrongdoing extended beyond the four traders thebank has fired.

In an instant-message conversation in late 2007, Jezri Mohideen,then the bank's head of yen products in Singapore, instructedcolleagues in the U.K. to lower RBS's submission to the Londoninterbank offered rate that day, according to two people withknowledge of the discussion. No reason was given in the message asto why he wanted a lower bid. The rate-setter agreed, submittingthe number Mohideen sought, the people said.

Mohideen wasn't alone. RBS traders and their managers routinelysought to influence the firm's Libor submissions between 2007 and2010 to profit from derivatives bets, according to employees,regulators and lawyers interviewed by Bloomberg News. Traders alsocommunicated with counterparts at other firms to discuss whererates should be set, one person said.