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U.S. President Barack Obama declared a major disaster in Oklahoma after deadly tornadoes struck the state on Sunday (May 19) and Monday (May 20) and ordered federal aid to supplement state and local recovery efforts, the White House said on Monday.
The White House said aid can include grants for temporary housing, home repairs, uninsured property losses and other recovery efforts.
Obama spoke by telephone with Oklahoma Governor Mary Fallin earlier on Monday, the White House said.
A 2-mile-wide (3-kilometre-wide) tornado tore through the Oklahoma City suburb of Moore on Monday, killing at least 51 people while destroying entire tracts of homes, piling cars atop one another, and trapping two dozen school children beneath rubble.