Officials confirmed Saturday at least 13 people are dead after multiple storms tore through Missouri and Arkansas.

An "outbreak" of tornadoes and severe thunderstorms is expected through Saturday night in Alabama, Mississippi, Louisiana, and other southern states.

The meteorological agency said: "If you live in these areas, get to the sturdiest structure you have access to and remain in place until the storms pass." Mike Kehoe, governor of Missouri - where the 11 deaths were reported across four south-easterly counties - said the state had been "devastated by severe storms and tornadoes,

At least 18 people are dead after severe weather hit parts of Missouri, Texas and Arkansas overnight, officials said. Eleven storm-related fatalities were reported in the Missouri counties of Ozark, Butler,