Barclays Bank has said it will review how its currency trading operated over the past several years, amid a new inquiry into market manipulation.
It said it was co-operating with regulators in the inquiry, which comes on the heels of other scandals, including Libor rate-fixing.
Regulators around the world, including the UK’s Financial Conduct Authority, are investigating currency trading.
The news came as the bank announced an increase in profits so far in 2013.
In the first nine months of the year, it said pre-tax profits rose to £2.85bn, from £962m in the same period last year.
“Various regulatory and enforcement authorities have indicated they are investigating foreign-exchange trading, including possible attempts to manipulate certain benchmark currency exchange rates or engage in other activities that would benefit their trading positions,” the bank said.