Meanwhile, U.S. health officials are urging that Gulf Coast hurricane victims be moved out of their government-issued trailers as quickly as possible after tests found toxic levels of formaldehyde fumes.
McIntyre said that, despite that recommendation, FEMA would proceed with its plan to aid victims of last week's storms. He said there will be a process in place to ensure safety.
McIntyre said the agency would be releasing more information about what those steps would be during a news conference in Louisiana later Thursday.
Tennessee state officials estimate the tornadoes destroyed 517 homes and 61 mobile homes. Estimates in Arkansas suggest about 300 homes were destroyed.
McIntyre said the agency has 5,650 mobile homes available for use at the Hope airport. He said 300 of them are ready for immediate deployment.
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