Tornadoes tear through Kansas, Oklahoma and Iowa

Tornadoes touched down in three states on Sunday, ripping roofs off homes and turning trees to matchsticks, as severe weather swept the region. A large "violent and extremely dangerous" tornado was spotted on the southwest side of Wichita, Kansas, the National Weather Service said. A second confirmed tornado was seen near Edmond, Oklahoma, said the weather service. Another tornado was spotted in nearby Luther, Oklahoma, but it was not immediately clear whether that was the same twister.