British Barclays’ group has promised a root and branch review of its business practices and announced the resignation of its chairman Marcus Agius. This follows Barclays' attempts to manipulate inter-bank lending rates, for which it was fined £290m.
The UK government is expected to announce a wider inquiry into banking later, in addition to the inquiry of the abuses of Libor rates already announced.
The new inquiry will not, however, be a full public inquiry like the Leveson Inquiry into press standards, which Labour has asked for.
Leader of the opposition, Ed Miliband, said criminal charges should be brought against those involved in the rate-fixing scandal and called for the resignation of Barclays’ chief executive Bob Diamond.
He said it was really important to restore trust in British banks. I really don't think that can be done by Bob Diamond, he said.
Former Barclay’s director Baroness Wheatcroft told BBC News that the chairman was currently carrying the can and said Mr Diamond's resignation was now inevitable.
Mr Diamond will appear before MPs on the Treasury Committee on Wednesday, followed by Mr Agius on Thursday.
Mr Agius has also stepped down as chairman of the British Bankers' Association, which is responsible for compiling Libor. Mr Agius, who also serves on the BBC's executive board, said last week's events were evidence of unacceptable standards of behaviour within the bank.
He said the findings had dealt a devastating blow to Barclays' reputation.
Barclays' board has launched an audit of its business practices, which will be conducted by an independent body and report to the new deputy chairman, Sir Michael Rake.
The bank promised: a root and branch review of its flawed past practices; a public report of the audit's findings; a new mandatory code of conduct for all staff.
Barclays will establish a zero tolerance policy to anything that damages its reputation, the bank said in the statement.
Sir Michael Rake, BT chairman and senior independent director at Barclays, has been appointed deputy chairman at the bank. He is seen as a likely successor to Mr Agius.
Mr Agius will stay on as chairman while Sir John Sunderland, a non-executive director of Barclays, looks for his replacement.
Barclays was fined after the Financial Services Authority (FSA) found its traders had lied about the interest rate other banks were charging it for loans. Investigations are also under way at RBS, HSBC, Citigroup and UBS.
Giving a lower reading than the true rate would give the impression that Barclays was considered a better lending risk than it actually was. Reporting a higher reading than the real rate could have inflated trading profits artificially, misleading investors and regulators.
The FSA found evidence that Barclays, sometimes working with staff at other banks, had tried to manipulate Libor (the London Inter Bank Offered Rate) and its European equivalent Euribor between 2005 and 2009.
Bob Diamond said Mr Agius' decision deserves all of our respect and paid tribute to Mr Agius' six years as chairman: He has been a thoughtful and supportive colleague to me in all of my roles - especially since I became chief executive last year.