Severe weather was moving through Mississippi early Thursday after apparent tornadoes tore through parts of Oklahoma, Texas and Louisiana.
A gunman disguised as a police officer shot people in their homes and set fires in a rampage across the Canadian province of Nova Scotia.
Mill officials told authorities that all employees and contractors have been accounted and no one was injured in the blast.
Many people spent part of the night early Monday sheltering in basements, closets and bathroom tubs as sirens wailed to warn of possible tornadoes.
At Cookeville Regional Medical Center in the county seat, doctors and nurses have gone from treating about 80 patients injured in the tornado to preparing for coronavirus.
The sudden collapse of the building in the southeastern city of Quanzhou on Saturday evening trapped 71 people.
Emergency officials say they believe the systems in place to warn people worked properly.
No place saw more destruction than pockets of Putnam County.
Rescuers search for victims after tornadoes caused damage in Nashville and other parts of the state.
Severe weather destroys several buildings, injures many people, in and around Nashville.