WASHINGTON: The Group of 20 rich and emerging countries said Saturday it was committed to using all the means available to tackle the financial crisis rocking world markets.

G20 members "committed to using all the economic and financial tools to assure the stability and well functioning of financial markets," a statement said after a meeting in Washington.

It said they also agreed to ensure that measures taken to ease the crisis "are closely communicated so that the action of one country does not come at the expense of others or the stability of the system as a whole."

The G20, which includes emerging giants Brazil, Russia, China and India alongside the Group of Seven industrialized nations, gathered for a special meeting called by Brazil, the group chair, and US Treasury Secretary Henry Paulson on the crisis.

The G20 said the members of the group "stressed their resolve to work together to improve the regulation, supervision and the overall functioning of the world''s financial markets."

Given the global impact of the crisis, there had to be international cooperation to bring it under the control.

The G7 -- the United States, Britain, Canada, France, Germany, Italy and Japan -- agreed Friday to use all means available, including ensuring that no major bank would be allowed to fail, to try and resolve the crisis.

US President George W. Bush attended the G20 meeting, having said earlier Saturday that the world''s richest economies were united on a "serious global response" to the financial meltdown.