A fiery crash killed a Kentucky truck driver and injured three others after two tractor trailers collided nearly head-on Wednesday afternoon on I-75 in Campbell County.

The crash shut down the highway in both directions for several hours as crews worked to clean up the scene and deal with a hazardous materials situation.

THP says just after 3 p.m. near exit 134, a tractor trailer traveling northbound crossed the center median and crashed into another tractor trailer traveling southbound. One of the trucks was carrying batteries and the other was carrying what officials described as an "oxidizing material." When the trucks collided, there was an explosion and both trucks caught fire, sending a massive plume of smoke into the air.

10News learned Thursday morning that Tim Holt, 49, of Russell Springs, Kentucky was driving the truck that crossed the median. His employer, Superlex, a battery manufacturing company, said Holt had worked for the company for 15 years and had a good driving record. He was married and had a stepson.

At one point, THP says there was concern one of the trucks may be carrying radioactive material because the truck had a placard on it saying "radioactive." THP has since confirmed there was no radioactive material involved in the crash.

A half-mile radius around the crash was briefly evacuated as THP followed protocol set by the Tennessee Emergency Management Agency (TEMA) in dealing with hazardous material spills.

THP says law enforcement agencies and EMS units from all over the county pitched in to help.

The three people who were injured were all taken to UT Medical Center, and their conditions are currently unknown.