The chief executive of WestLB quit his job abruptly after falling out with the German bank's biggest shareholder over restructuring plans.

WestLB will inject 3 billion in capital into a bad bank that will take over the toxic assets, the equivalent of about a third of its balance-sheet.

WestLB, the shakiest of Germany's state-owned wholesale Banks, or Landesbanken, prominently displays an "overview" of the bank's many "protection mechanisms" on its site.