Norwegian banks' contingency plans for cash distribution "may prove inadequate" in the event of a crisis, the country's central bank has warned.

Banks are expected to cope with full or partial failure of the payment system. In its last financial infrastructure report, Norges Bank argues it is not sufficiently clear whether electronic payment solutions "can take over the role of cash" in a crisis.

Without a viable alternative for cash, it has to be included in any solution. Norges Bank's