U.S. President George W. Bush has already asked the U.S. Congress to speed approval for some $225 million in food aid to Sudan.
U.S. Secretary of State Condoleezza Rice is expected to call for the rapid deployment of UN peacekeepers in Sudan when she addresses the UN Security Council today.
Tens of thousands of people have died and more than 2 million have been left homeless since the conflict in Darfur began three years ago.
Last week, the Sudanese government signed a peace agreement with Darfur rebels in a bid to end fighting in the region.
(compiled from agency reports)