A powerful winter storm brought heavy snow and icy conditions to parts of the U.S. South on Thursday, forcing officials to close schools, cancel flights and warn residents in some of the worst-hit areas to stay off roads as it lumbered eastward through Oklahoma and Texas.

Winter storms closed schools, snarled flights and put millions of residents on alert across parts of the Deep South and south-central United States.

Multiple states have closed state offices and grocery store shelves are empty as a winter storm throttles the South.

Arkansas Gov. Sarah Huckabee Sanders hopes to bring back work requirements for some people on its Medicaid program.