The tornadoes that swept across Oklahoma, Kansas and Iowa were part of a massive, northeastward-moving storm system that stretched from Texas to Minnesota.
At least four separate tornadoes touched down in Oklahoma late on Sunday afternoon, including the one near the town of Shawnee that laid waste to much of a
mobile home park. Picture: AP Photo/The Dallas Morning News, G.J. McCarthy
Across the state, 21 people were injured, not including those who suffered bumps and bruises and chose not to visit a hospital, said Keli Cain,
a spokesman for the Oklahoma Department of Emergency Management. Picture: AP Photo/The Dallas Morning News, G.J. McCarthy
Forecasters had been warning for days that the weekend storm system could produce tornadoes, and emergency responders throughout the region were vigilant throughout the weekend as it moved northeastward. Tornado watches or warnings were in effect in several states. Above, Alli Christian, left, returns Jessica Wilkinson's dog Bella to her after finding her among the wreckage of Wilkinson's home. Picture: AP Photo/The Oklahoman, Steve Sisney
The National Weather Service issued an initial finding that the tornado was an EF-4 on the enhanced Fujita scale,
the second most-powerful type of twister Picture: AP