Barclays has confirmed a £500m provision for fines relating to allegations foreign exchange markets were manipulated by banks.
The London-listed lender announced the figure in its third-quarter results statement which also contained further costs associated with the historic payment protection insurance (PPI) mis-selling scandal.
It set aside an additional £170m for PPI but said it was also releasing a previous charge of £160m related to the sale of interest rate hedging products.
The group made a statutory profit before tax of £3.7bn over its first nine-months - a rise of 30.5% on the same period last year.
The performance was driven by stronger performances from its Personal and Corporate and separate Barclaycard arms, though investment bank profits tumbled 38% to £1.3bn as its group contribution continued to shrink under chief executive Antony Jenkins.
He said the results reflected further progress towards key goals under its Transform programme - aimed at making Barclays the "go-to" bank - and demonstrated greater resilience through its rebalancing from the "casino banking" days.
"In aggregate, this is a good performance from the group, our strategy is working, and we expect to see continued progress as we go forward," he added.
Sky News reported on Wednesday that Barclays, HSBC and RBS were poised to set aside roughly £1bn for settlements with regulators following probes into the abuse of critical foreign exchange benchmarks.
It is understood that settlements between UK banks and the Financial Conduct Authority could be announced as soon as next month.
The additional provision for costs associated with PPI means Barclays has now set aside more than £5bn.
Lloyds confirmed earlier this week its PPI bill had topped £11bn.