At least 28 people are dead and tens of thousands without power after a storm system spawned a chain of tornadoes over three days across a large swath of the US, the Associated Press reported.
The storms flattened homes and businesses and forced frightened residents in more than half a dozen states to take cover.
Video footage captured a storm chaser shows the moment a tornado swept through the US city of Tupelo, Mississippi.
"It's getting really close", a woman can be heard saying before both she and fellow storm chaser Skip Talbot decide it is time to leave.
Video courtesy of Skip Talbot/KDR Media
"We've got to go right now", she adds before they pull away.
The death toll has risen to at least 26 following two days of severe weather and tornadoes in the US, the Associated Press reported.
A second day of deadly tornadoes has seen 21 people die across the southern and central US, including one person in Elvis Presley's birthplace in Mississippi.
The city of Tupelo, home to 35,000 people, suffered power outages and extensive damage to homes and businesses.
Eyewitnesses have described the destruction left behind by the tornadoes that swept the continental United States.
One said people were saying the storm had been half a mile wide, with another describing how he saw "some of the biggest trees just turned upside down".
ITV News' Martha Fairlie reports:
Aerial footage of Mayflower, Arkansas shows the extent of the damage caused by tornadoes that swept across the south-central United States on Sunday.
The death toll from the storm, which flipped cars and ripped houses off their foundations, currently stands at 17.
The death toll from a major storm front that moved its way across the continental United States has risen to 17.
Several tornadoes struck the south-central US on Sunday, wiping out entire neighborhoods, authorities said as rescue workers searched in darkness for survivors.
At least 12 people have been confirmed dead after a tornado ripped through the south-central United States on Sunday, according to officials
Rescue operations are underway after the tornado wiped out entire neighborhoods of homes, officials say.
Aerial footage has shown the extent of the tornado damage in the town of Quapaw in the southern US state of Oklahoma.
Several tornadoes touched down as a major storm front moved its way across the continental United States.
One of the two people who has so far been reported dead was in Quapaw, while a second was near the city of Little Rock in the neighbouring state of Arkansas.
Footage has been released showing the extensive damage wreaked by a tornado in the US state of Kansas.
There are reports of "mass casualties" in the neighbouring state of Arkansas, while local media also say two people have died in the town of Quapaw in Oklahoma.