The G7 nations have pledged a co-ordinated response to the crisis
Finance ministers from leading industrialised nations have pledged action to tackle the financial crisis.
The G7 nations issued a five-point plan of "decisive action" to unfreeze credit markets, after a meeting in Washington.
Widespread fears of a global recession caused Asian, European and US markets to tumble on Friday despite rate cuts and cash injections by central banks.
The US also said it would invest directly in banks for the first time since the 1930s, following a UK move.
As well as the Washington meeting of the G7 - which comprises the US, Japan, Britain, Germany, France, Italy and Canada - the International Monetary Fund (IMF) will hold talks in the US capital over the weekend.
Leaders of the eurozone countries are also scheduled to meet in Paris on Sunday.
After Friday's G7 meeting, US Treasury Secretary Henry Paulson said the group had a clear vision of what needed doing, and was working together to stabilise the world's panic-stricken money markets.
Henry Paulson says "it is critical for governments to provide much needed liquidity"
"We are squarely focused on the immediate need to stabilise our financial market and recognise that investor confidence is critical to restore liquidity and enhance the stability of our financial system," he said.
The five-point plan is intended to protect major banks and financial institutions from failure and ensure they can raise capital from public and private sources.
It includes steps to unfreeze the flow of credit and protect savers, although it did not reveal any specific measures.
It pledged to take "decisive action and use all available tools" to support financial institutions.
It also vowed to take all necessary steps to unfreeze credit and money markets; ensure banks can raise capital from public as well as private sources; and ensure national deposit insurance and guarantee programs are robust.
Mr Paulson said the US was working closely with China and Japan - both of which hold large amounts of US treasury bonds - to resolve the crisis.
He added that the US government would buy bank equity.
"We're going to do it as soon as we can do it and do it effectively," Mr Paulson said.
On Wednesday, the UK announced it would set aside £50bn to buy shares in the nation's banks.
While the G7 statement identifies the main areas requiring urgent attention, it is short on detail, says the BBC's Andrew Walker in Washington, adding that much will now depend on how each government takes its own plans forward.
Earlier on Friday, US President George W Bush said his government would continue to act to resolve the crisis.
Speaking on the White House lawn, Mr Bush said the recent market turmoil was being driven by "uncertainty and fear".
But he said the US authorities had a comprehensive strategy and a wide range of tools that they were using "aggressively" to fix the problems.
We're in this together and we'll come through this together
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