(22)In addition to the case in which an MMF invests in bank deposits in accordance with its fund rules or its instruments of incorporation, it should be possible to allow an MMF to hold ancillary liquid assets, such as cash in a bank account accessible at any time. The holding of such ancillary liquid assets could be justified, inter alia, in order to cover current or exceptional payments, in the case of sales, for the time necessary to reinvest in eligible assets.