Tornado outbreak slams through Oklahoma

Dozens killed, including many schoolchildren, as tornado leaves trail of destruction in US city
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Dana Ulepich searches inside a room left standing at the back of her house destroyed after a powerful tornado ripped through the area on May 20, 2013 in Moore, Oklahoma. The tornado, reported to be at least EF4 strength and two miles wide, touched down in the Oklahoma City area on Monday killing at least 51 people. (Getty Images)
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Philip Gotcher stands in the rubble of his house after a powerful tornado ripped through the area on May 20, 2013 in Moore, Oklahoma. The tornado, reported to be at least EF4 strength and two miles wide, touched down in the Oklahoma City area on Monday killing at least 51 people. (Getty Images)
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The hood of car is wedged into the front window of the Moore Medical Center after a powerful tornado ripped through the area on May 20, 2013 in Moore, Oklahoma. The tornado, reported to be at least EF4 strength and two miles wide, touched down in the Oklahoma City area on Monday killing at least 51 people. (Getty Images)
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Flipped vehicles are piled up outside the heavily damaged Moore Medical Center after a powerful tornado ripped through the area on May 20, 2013 in Moore, Oklahoma. The tornado, reported to be at least EF4 strength and two miles wide, touched down in the Oklahoma City area on Monday killing at least 51 people. (Getty Images)
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People assess the damage after a powerful tornado ripped through the area on May 20, 2013 in Moore, Oklahoma. The tornado, reported to be at least EF4 strength and two miles wide, touched down in the Oklahoma City area on Monday killing at least 51 people. (Getty Images)
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Volunteers help clean out Jean McAdams' mobile home after it was overturned by a tornado May 20, 2013 near Shawnee, Oklahoma. A series of tornados moved across central Oklahoma May 19, killing two people and injuring at least 21. (Getty Images)
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Lonnie Langston talks about his garage that was swept off the concrete pad next to his house by a tornado May 20, 2013 near Shawnee, Oklahoma. A series of tornados moved across central Oklahoma May 19, killing two people and injuring at least 21. (Getty Images)
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Dana Ulepich looks at the debris from her house destroyed by a powerful tornado ripped through the area on May 20, 2013 in Moore, Oklahoma. The tornado, reported to be at least EF4 strength and two miles wide, touched down in the Oklahoma City area on Monday killing at least 51 people. (Getty Images)