Powerful tornadoes have ripped through several states in America. There were 65 tornadoes in just one day.
The massive storms stretched all the way from South Dakota to Texas. This tornado can be seen touching down in Texas.
The town of Holly in Colorado was among the worst hit - by a tornado that was as wide as two football pitches.
Dozens of homes were destroyed and people were left searching through the rubble for their possessions.
Four people were killed in the storms, which also damaged miles of power and telephone lines.
This electricity pylon in Oklahoma City was bent and twisted in the storms.
The clean-up operation is already under way. This man is helping to clear a tree that was uprooted in the bad weather.
But there's a lot of work left to do. This pile of rubble used to be someone's home!