The FSA has fined members of the Royal Bank of Scotland Group (RBSG) £5.6m for failing to have adequate systems and controls in place to prevent breaches of UK financial sanctions.
London's top stocks have given up some of yesterday's triple-digit gains in early trading, with the FTSE 100 down 0.72%.
RBS is set to announce the sale of 318 branches to Spain's Santander as the UK lender offloads the former Williams & Glyn's network.
The Royal Bank of Scotland has launched three exchange-traded notes (ETNs) on Xetra in Germany, tracking the performance of MSCI equity indices.
Chancellor George Osborne has called for a tight rein on pay and bonuses and increased lending from the banks as they prepare to announce a recovery in profits this week.
Barclays, RBS and Lloyds shares have all rocketed today on news the Basel Committee plans to water down its capital and liquidity reform package.
The UK's four major banks have passed EU stress tests, although five Spanish banks failed, the Committee of European Banking Supervisors (CEBS) said.
British taxpayers stand to make a £5bn profit from insuring the toxic assets of RBS and Lloyds, despite not yet having paid a penny.
Spanish banking giant Santander is planning to list its UK operations on the London Stock Exchange as soon as this autumn in a deal worth an estimated £3bn.
Investment banking giant Goldman Sachs will pay a record $550m fine to settle the SEC's fraud probe into mortgage-backed securities.