US President George W. Bush traveled South on Monday to promise "a huge effort" for Katrina victims.
Bush first stopped at the Bethany World Prayer Center, a huge hall half filled with dining tables.
Bush told reporters that there was still much work to be done.
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“And we're going to continue working with the local and state people to get it done. The first mission of course is to save lives. And so long as any life is in danger, we've got work to do. And they're going to continue to save lives, whether it be in New Orleans or the surrounding parishes or up and down Mississippi.”
The death toll from Hurricane Katrina is still not known.
New Orleans' mayor warned that 10,000 people may have died.
Hundreds of thousands of people already have been evacuated, seeking safety in Texas, Tennessee and other states.
What will happen to the refugees in the long term was not known.
One week after Hurricane Katrina devastated the region, miles-long lines of vehicles crawled into Jefferson Parish on Monday as residents were allowed to return to salvage what was left of their homes.
The Bush administration continues to counter fierce criticism that the administration didn't act aggressively enough right after the hurricane swept through.
New Orleans local newspaper, The Times-Picayune, published an open letter to President Bush, calling for the firing of every official at the Federal Emergency Management Agency. It says they failed to rescue thousands of stranded citizens.