The Financial Services Agency has joined a probe into possible rigging of interest rates at Royal Bank of Scotland Group PLC, according to two regulatory officials with knowledge of the matter.
The FSA earlier this month began reviewing RBS's Japan banking and brokerage units on issues including compliance related to the setting of London and Tokyo interbank offered rates, the officials said, asking not to be named as the matter is confidential.
The Securities and Exchange Surveillance Commission began its inspection last month, a government official with knowledge of the matter said at that time.