President Joe Biden early Sunday issued an emergency declaration for Mississippi, making federal funding available to Carroll, Humphreys, Monroe and Sharkey counties, areas hardest hit Friday night by a deadly tornado that ripped through the Mississippi Delta, one of the poorest regions of the U.S.

Rescuers raced Saturday to search for survivors and help hundreds of people left homeless after a powerful tornado cut a devastating path through Mississippi, killing at least 25 people, injuring dozens, and flattening entire blocks as it carved a path of destruction for more than an hour. One person was killed in Alabama.