More than 100,000 have been left without power after strong winds and possible tornadoes swept across parts of the southern US on Wednesday.
Areas of Texas, Oklahoma, Arkansas and Louisiana were under severe thunderstorm warnings, including potentially “very large hail and damaging winds”, said meteorologists.
Witnesses reported tornadoes touching down in Alabama.
Storm warnings are still in place for swathes of Alabama and Georgia.
Daily hailstorms have also plagued the southern plains of the US since Saturday.
As of 0715 EST (1115 GMT) on Thursday, more than 106,000 people were still without power in Mississippi, Alabama, Florida and Georgia, according to Poweroutage.us.
Of these, the greatest number – about 47,000 – were in Alabama, where at least two tornadoes are believed to have touched down.
The extent of the damage remains unclear. In the town of Eufaula, mayor Jack Tibbs told local station WSFA-TV that at least one building collapsed and 40 trees were downed by a tornado. No injuries have so far been reported.