A train struck a semi-truck in eastern Iowa on Wednesday, killing one person and injuring another, authorities said.
At least a dozen train cars fell off the tracks, according to video that witness Caitlin Nolan shot.
Meanwhile, a CDC team going door to door in East Palestine got sick during their investigation in early March.
A freight train derailed in a fiery crash near a small town in Minnesota early Thursday morning, forcing residents to evacuate as a precaution, officials said.
A train hauling iron ore with 55 cars derailed in the Mojave Desert Monday.
A train that derailed in western Arizona was carrying corn syrup, the railroad said, after the county sheriff's office said it may have been carrying hazardous materials.