Cleanup efforts are underway in Iowa and Illinois after a series of devastating storms.
One of the tornadoes spun off by the storms hit a mobile home in the town of Nichols, killing at least one person.
The Iowa National Guard is on duty in heavily damaged areas. Iowa City was hit hard, including the campus of the University of Iowa, which canceled classes Monday. Some five thousand people still don't have power.
Northern Illinois has also been hit hard. Heavy winds knocked down trees and power lines in communities along the Mississippi River. There were reports of funnel clouds and the National Weather Service says that at least one tornado was spotted on the ground south of the Quad Cities.