As many as 91 people are feared dead in Oklahoma, where a tornado with winds of 320 kilometers an hour caused massive destruction Monday afternoon.
Massive Tornado Hits Oklahoma

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A woman carries her child through a field near the collapsed Plaza Towers Elementary School in Moore, Oklahoma, May 20, 2013.

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This aerial photo shows the remains of houses in Moore, Okla., following a tornado Monday, May 20, 2013.