In the last week, two U.S. banks collapsed and had to be taken over by the government.

California regulator shut down Silicon Valley bank.

Financial regulators shut down New York based signature bank in a move designed to slow

down a banking crisis.

It's prompted fears of a full-blown crisis in the sector.

So moved right now in the banking world is very negative.

Since last week, we've seen just a real lack of confidence in the stability of banks.

That's our colleague Margot Patrick.

And she says, since those failures, people have been taking a hard look at other banks.

It feels right now like investors are looking for the next sort of domino to fall and

they've zeroed in on credit suites.

And on Wednesday, investors started dumping its shares.

My major sell-off of shares in the Swiss banking giant Credit Suisse shares in Credit Suisse

plunged to a record low falling 24%.

The Swiss bank has seen it shares tumble this week with billions of dollars wiped off

its market value.

All this got the attention of banking regulators.

They didn't want problems to snowball.

Credit Suisse is very integrated into the global financial system.

So the knock on effects for other banks could be severe and it also could spark further

questions about the health of other banks.

And last night, the Swiss central bank stepped in lending Credit Suisse over $50 billion.

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