Local authorities report that a tornado in Arkansas and Oklahoma has killed 12 people.
Many buildings were damaged by the storm. Emergency Service workers and volunteers are searching homes in the area to find people who need immediate medical care. Interstate 40 is closed to traffic.
A powerful storm system passed through the central, southern, and northern parts of the United States.
Hurricane warnings have been issued for Kansas, Missouri, Nebraska, Iowa, Arkansas, Oklahoma, Texas, and Louisiana.