The tanker driver, who was not immediately identified, died but no other injuries were reported, Coe said.
Authorities said the exact chain of events that led to the crash is under investigation. Officials are also working to determine exactly what substance the tanker was hauling, though Coe said it was believed to be a commonly transported flammable liquid like gasoline or diesel fuel that posed no threat to the general public.
Crews would be monitoring the air quality and isolating the area where the liquid saturated soil for cleanup, he said. Officials said there was no breach of the city’s sewer system or a nearby creek.
The crash initially shut down US15, which runs through the city of about 80,000 people, in both directions, the State Highway Administration said.