Violent storms across southern America have killed at least nine people, as tornadoes and severe weather systems continue to lash the US.
Officials say up to seven people died in Mississippi when further wild weather tore through the state.
In Alabama, a further two deaths have been confirmed after a tornado caused major damage to the city of Athens.
Emergency Director Rita White said more victims may be trapped in the wreckage of damaged buildings. Rescuers are yet to reach some areas due to downed power lines.
The severe weather comes after a series of tornadoes and violent storms lashed central and mid-western states on Sunday.
Seventeen people have so far been confirmed dead from the weekend storms.
The storms saw more than a dozen tornadoes damage buildings, overturn trucks and bring down trees.
National Guard troops have been mobilised in the worst-hit areas and rescue crews continue to search debris for victims.
The tornadoes struck Arkansas, Oklahoma, Iowa, Kansas, Nebraska, Missouri and Louisiana.
Maggie Caro, her husband and two children were among some of the last people reach safely inside a fortified school gymnasium as a tornado ripped through Vilonia, Arkansas.
She said: “They were screaming, ‘Run! Run! It’s coming!'”
The half-mile-wide tornado carved an 80-mile path of destruction through the small community just north of Little Rock, killing at least 14 people and flattening homes.
Officials said they expect the overall death toll to rise as crews continue to sift through debris.
Arkansas Governor Mike Beebe said officials did not yet have a count of the missing.
Vilonia Mayor James Firestone said: “It’s chaos right now.”
A separate twister killed one person in Quapaw, Oklahoma, on Sunday evening, before crossing into Kansas, where it destroyed more than 100 homes and businesses and injured 25 people in the city of Baxter Springs.
President Barack Obama, who is currently in the Philippines, pledged federal assistance to the hard-hit communities.
He said: “Your country will be there to help you recover and rebuild, as long as it takes.”