CROSSVILLE - At least three people are dead after a crash and explosion in Cumberland County.

The accident happened at the Crossville exit, mile marker 320, and was reported a little before 3 p.m. Eastern time, according to TDOT Smartway.

According to the Tennessee Highway Patrol, a truck tractor with no trailer was traveling east on I-40 when it crossed the median and hit a tractor-trailer hauling automobiles and a passenger vehicle. Both trucks caught fire, and the drivers of both of them were killed. The driver of the other vehicle involved was also killed. A passenger in that vehicle was injured and transported by Lifestar to UT Medical Center.

Both a TDOT spokesperson and witnesses on the scene reporter there were multiple explosions after the accident, and a large fire sent a huge plume of black smoke into the air.

The westbound lanes of I-40 remain shutdown and will likely remain that way for a while. Traffic is being diverted off at Exit 322 (SR101) to SR 1 to US 127/SR 28 and back on at Exit 317.

One eastbound lane is open, though traffic is moving slow.  

Viewer photos and videos from the scene showed heavy flames coming from what appeared to be wreckage from a semi-truck.

Kristopher Cole shared his Facebook Live of the scene with 10News. He said the truck had "exploded like 4 times" 

Several other vehicles appeared to be overturned near the wreckage. 

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