Arrest warrants have been issued in Argentina for three former top bankers, including an ex-chief executive of Credit Suisse, Lukas Mühlemann, on suspicion of fraud.
Mühlemann headed the Banco General de Negocios (BGN) with William Harrison, a former head of JP Morgan Chase, and Bernd Fahrholz, the ex-head of Dresdner Bank.
Justice authorities in Buenos Aires said the three bankers failed to appear at a hearing where they were due to testify about the charges.
BGN was closed by Argentina's central bank in 2002 for suspected fraud and its owners arrested for alleged money laundering.
The bankers have said they know nothing about illegal activities by the bank.