Credit Suisse shares plummet 30% as banks from Germany to Ireland are hit hard

Credit Suisse's offices in Zurich. It has a banking balance sheet worth as much as €540bn.

Shares in Credit Suisse — one of Europe's largest lenders — plummeted as much as 30% today, a sign of the worsening banking crisis as German, British, and Irish banks also suffered sharp stock market falls. 

Any further fallout from Credit Suisse, whose banking balance sheet is worth as much as €540bn, would surpass that sparked when US-based lenders, including Silicon Valley Bank, collapsed last weekend.