A semi-tractor trailer was carrying 20,000 pounds of ammonium nitrate when it overturned Friday in Douglas County.

Businesses have been damaged, some homes lost to fire and heavy winds ... blocked on highways due to overturned vehicles. Tractor-trailers on I-44 were overturned. One of them near Villa Ridge ...

Semi-trailers are a key pillar of freight transportation, carrying everything from groceries and furniture to heavy machinery across the country. These giant vehicles help keep the supply chain ...

One person died after being struck by a semi-trailer on Interstate 40 near Amarillo Wednesday night in Potter County, authorities said. Jessica Hall, 36, of Copperas Cove, Texas, was pronounced ...