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Undated aerial photo of Briarwood Elementary School before Monday's tornado
AP/Steve Gooch
This aerial photo shows the remains of Briarwood Elementary School and homes hit by a massive tornado in Moore, Okla., Monday May 20, 2013.
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Undated aerial image of a neighborhood on Santa Fe Avenue Moore, Okla.
AP/Tony Gutierrez
An aerial view shows the same neighborhood destroyed by Monday's tornado.
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Undated aerial photo of Moore Medical Center
AP/Steve Gooch
This aerial photo shows damage to Moore Medical Center after it was hit by a massive tornado in Moore, Okla., Monday May 20, 2013.
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Undated image of Oklahoma City suburbs
AP/Steve Gooch
This aerial photo shows the remains of homes hit by a massive tornado in Moore, Okla., Monday May 20, 2013. A tornado roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school.
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Undated image of Plaza Towers Elementary School
AP/Steve Gooch
This aerial photo shows damage to Plaza Towers Elementary School after it was hit by a massive tornado in Moore, Okla., Monday May 20, 2013.