Ananova - Royal Bank of Scotland says it is facing a potential loss of £400m after a Wall Street banker was charged with a massive alleged fraud.
US prosecutors say Bernard Madoff has confessed to defrauding investors of $50bn (£33bn) in a giant pyramid scheme that collapsed in the global financial crisis.
RBS, in which the British government now has a majority stake, says it has exposure through investments in hedge funds that invested with Mr Madoff.
It is one of a number of banks that face big losses in the suspected fraud.
Santander, the Spanish bank that owns Abbey and Alliance and Leicester, said it had more than 2.3bn euros (£2.08bn) worth of exposure.