Tornadoes strike Oklahoma and Arkansas

Tornadoes ripping across Oklahoma left at least 21 dead, and the death toll could rise yet again, weather forecasters say.

The steeple of a church at South Janeway Avenue and SW 4th Street lays across the lawn after a tornado moved through Moore, Okla., on Monday, May 20, 2013. (AP Photo/Alonzo Adams)

The steeple of a church at South Janeway Avenue and SW 4th Street lays across the lawn after a tornado moved through Moore, Okla., on Monday, May 20, 2013. (AP Photo/Alonzo Adams)

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