Campbell County, TN (WOKI) An overturned semi truck has shut down the northbound lanes of I-75 in Campbell County.
According to the Campbell County Office of Emergency Management & Homeland Security, the crash happened at Mile Marker 157.
Traffic is backed up for several miles leading up to the crash on I-75, according to TDOT Smartway.
Additional information, including any injuries sustained in the crash, has not been released.
This is a developing story.