A powerful Texas hurricane killed 6 people, a Garland Police spokesperson said, and dozens of homes were damaged or destroyed.
Hurricanes hit the cities of Dallas, Farmersville and Garland, and authorities are checking how many homes were damaged in the storm. It is not excluded that people are buried under the rubble.
Dallas Airport, one of the busiest airports in the United States, has suspended operations for at least an hour.
It was reported earlier that 18 people were killed and about 60 others injured in storms in Mississippi, Tennessee, Arkansas and Alabama.
Ten people, including a 7-year-old child, were killed in Mississippi, six in Tennessee and one in Arkansas and Alabama. Many of the injured are in critical condition.
More than 240 residential homes are damaged or destroyed in Mississippi. In the four affected states, as well as in Texas, more than 800 homes were damaged. Nearly 200 Alabama roads have been closed due to flooding.