At least 23 people have been killed in Alabama after two tornadoes hit the region on Sunday afternoon, with rescuers expecting the death toll to rise as they continue to search through the rubble.
Three children, aged six, nine and ten, are among the dead, and tornado warnings have been issued for Georgia, Florida and South Carolina.
Alabama meteorologist Eric Snitil tweeted that there had been more deaths from tornadoes in Lee County in one day than in the entire US last year.