NEW YORK -- The U.S. government took extraordinary steps Sunday to stop a potential banking crisis after the historic failure of Silicon Valley Bank, assuring all depositors at the failed institution that they could access all their money quickly, even as another major bank was shut down.

The announcement came amid fears that the factors that caused the Santa Clara, California-based bank to fail could spread. Regulators had worked all weekend to try to find a buyer for the bank, which was the second-largest bank failure in history. Those efforts appeared to have failed Sunday.

In a sign of how fast the financial bleeding was occurring, regulators announced that New York-based Signature Bank had also failed and was being seized on Sunday. At more than US$110 billion in assets, Signature Bank is the third-largest bank failure in U.S. history.

The near-financial crisis that U.S. regulators had to intervene to prevent left Asian markets jittery as trading began Monday. Japan鈥檚 benchmark Nikkei 225 sank 1.6 per cent in morning trading, Australia鈥檚 S&P/ASX 200 lost 0.3 per cent and South Korea鈥檚 Kospi shed 0.4 per cent. But Hong Kong鈥檚 Hang Seng rose 1.4 per cent and the Shanghai Composite increased 0.3 per cent.

In an effort to shore up confidence in the banking system, the Treasury Department, Federal Reserve and FDIC said Sunday that all Silicon Valley Bank clients would be protected and able to access their money. They also announced steps that are intended to protect the bank鈥檚 customers and prevent additional bank runs.

鈥淭his step will ensure that the U.S. banking system continues to perform its vital roles of protecting deposits and providing access to credit to households and businesses in a manner that promotes strong and sustainable economic growth,鈥 the agencies said in a joint statement.

Under the plan, depositors at Silicon Valley Bank and Signature Bank, including those whose holdings exceed the $250,000 insurance limit, will be able to access their money on Monday.

Also Sunday, another beleaguered bank, First Republic Bank, announced that it had bolstered its financial health by gaining access to funding from the Fed and JPMorgan Chase.

In a separate announcement, the Fed late Sunday announced an expansive emergency lending program that's intended to prevent a wave of bank runs that would threaten the stability of the banking system and the economy as a whole. Fed officials characterized the program as akin to what central banks have done for decades: Lend freely to the banking system so that customers would be confident that they could access their accounts whenever needed.

The lending facility will allow banks that need to raise cash to pay depositors to borrow that money from the Fed, rather than having to sell Treasuries and other securities to raise the money. Silicon Valley Bank had been forced to dump some of its Treasuries at at a loss to fund its customers鈥 withdrawals. Under the Fed鈥檚 new program, banks can post those securities as collateral and borrow from the emergency facility.

The Treasury has set aside $25 billion to offset any losses incurred under the Fed鈥檚 emergency lending facility. Fed officials said, however, that they do not expect to have to use any of that money, given that the securities posted as collateral have a very low risk of default.

Analysts said the Fed鈥檚 program should be enough to calm financial markets on Monday.

鈥淢onday will surely be a stressful day for many in the regional banking sector, but today鈥檚 action dramatically reduces the risk of further contagion,鈥 economists at Jefferies, an investment bank, said in a research note.

Though Sunday's steps marked the most extensive government intervention in the banking system since the 2008 financial crisis, its actions are relatively limited compared with what was done 15 years ago. The two failed banks themselves have not been rescued, and taxpayer money has not been provided to the banks.

U.S. President Joe Biden said Sunday evening as he boarded Air Force One back to Washington that he would speak about the bank situation on Monday. In a statement, Biden also said he was 鈥渇irmly committed to holding those responsible for this mess fully accountable and to continuing our efforts to strengthen oversight and regulation of larger banks so that we are not in this position again.鈥

Regulators had to rush to close Silicon Valley Bank, a financial institution with more than $200 billion in assets, on Friday when it experienced a traditional run on the bank where depositors rushed to withdraw their funds all at once. It is the second-largest bank failure in U.S. history, behind only the 2008 failure of Washington Mutual.

Some prominent Silicon Valley executives feared that if Washington didn鈥檛 rescue the failed bank, customers would make runs on other financial institutions in the coming days. Stock prices plunged over the last few days at other banks that cater to technology companies, including First Republic Bank and PacWest Bank.

Among the bank's customers are a range of companies from California鈥檚 wine industry, where many wineries rely on Silicon Valley Bank for loans, and technology startups devoted to combating climate change. Sunrun, which sells and leases solar energy systems, had less than $80 million of cash deposits with Silicon Valley. Stitchfix, the clothing retail website, disclosed recently that it had a credit line of up to $100 million with Silicon Valley Bank and other lenders.

Tiffany Dufu, founder and CEO of The Cru, a New York-based career coaching platform and community for women, posted a video Sunday on LinkedIn from an airport bathroom, saying the bank crisis was testing her resiliency. Given that her money was tied up at Silicon Valley Bank, she had to pay her employees out of her personal bank account. With two teenagers to support who will be heading to college, she said she was relieved to hear that the government鈥檚 intent is to make depositors whole.

鈥淪mall businesses and early-stage startups don鈥檛 have a lot of access to leverage in a situation like this, and we鈥檙e often in a very vulnerable position, particularly when we have to fight so hard to get the wires into your bank account to begin with, particularly for me, as a Black female founder,鈥 Dufu told The Associated Press.

Silicon Valley Bank began its slide into insolvency when its customers, largely technology companies that needed cash as they struggled to get financing, started withdrawing their deposits. The bank had to sell bonds at a loss to cover the withdrawals, leading to the largest failure of a U.S. financial institution since the height of the financial crisis.

Treasury Secretary Janet Yellen pointed to rising interest rates, which have been increased by the Federal Reserve to combat inflation, as the core problem for Silicon Valley Bank. Many of its assets, such as bonds or mortgage-backed securities, lost market value as rates climbed.

Sheila Bair, who was chairwoman of the FDIC during the 2008 financial crisis, recalled that with nearly all the bank failures then, 鈥渨e sold a failed bank to a healthy bank. And usually, the healthy acquirer would also cover the uninsured because they wanted the franchise value of those large depositors so optimally, that鈥檚 the best outcome.鈥

But with Silicon Valley Bank, she told NBC's 鈥淢eet the Press,鈥 鈥渢his was a liquidity failure, it was a bank run, so they didn鈥檛 have time to prepare to market the bank. So they鈥檙e having to do that now, and playing catch-up.鈥

___

Rugaber and Megerian reported from Washington. Sweet and Bussewitz reported from New York.

Associated Press Writers Hope Yen in Washington and Jennifer McDermott in Providence, Rhode Island, contributed to this report.