New York  - Britain's Prime Minister Gordon Brown called Friday for stabilizing the international financial markets roiled by the credit crunch in the United States and for reviewing the role of major financial institutions created after World War II.

Brown said the US needs global support as it is trying to work out details of the bailout of the credit markets and investment banking systems.

"So first we must do all it takes to stabilize the still turbulent financial markets and, in the months ahead, work together to rebuild the world financial systems around clear principles," Brown said in an address to the UN General Assembly at UN headquarters in New York.

Deep problems in world markets and the spiralling food and fuel prices suffered by many countries have troubled government leaders attending the annual UN meetings. Brown and a host of those leaders called on the UN to lead the fight against poverty and hunger, and provide the forum for discussions on economic disturbances.

Brown said the clear principles in world markets he demanded include transparency in international movements of capital, sound banking practices and more effective regulation, and responsibility and integrity at management levels.

International institutions like the World Bank and International Monetary Fund, created after World War II, have not kept up with the changing global economy, he said. He called for strengthening those institutions.

"We must now build a new global financial order founded on transparency not opacity, rewarding success not excess, responsibility not impunity," he said, adding that that new order should be global not national. (dpa)