At least 13 people were killed in Missouri after a series of tornadoes hit the Midwest and Southeast U.S. overnight. A total of 26 tornadoes were reported, though not yet confirmed, causing widespread destruction late on March 14. The storms were driven by a low-pressure system that brought strong thunderstorms to parts of Arkansas, Illinois, Mississippi, and Missouri. As the storms gain strength again, weather forecasters warn of a high risk of more tornadoes and severe thunderstorms, according to Reuters.