A powerful band of storms barreled through the South, toppling trees, snapping power lines and bringing the two-day death toll to 17.
Alabama Gov. Robert Bentley declared a state of emergency late Friday after reports of tornado touchdowns in at least six counties.
Multiple injuries were reported in Sumter and Marengo counties, with at least one fatality in the latter, he said.
Three people were also killed in Autauga County after fallen trees crashed into mobile homes in the area, police said.
Three deaths in Washington County were reported, said Yasamie August, spokeswoman for the Alabama Emergency Management Agency.
Two other deaths were previously reported in Oklahoma and seven in Arkansas.