DENISON, Texas (KTEN) — Early morning rush hour traffic was stymied Thursday after a southbound 18-wheeler overturned on U.S. 75 in Denison.

Denison police said the big rig — hauling 20 pallets of raw chicken — was trying to switch lanes near the Spur 503 exit when it flipped over.

The driver was not injured in the crash.

Southbound traffic was diverted to the service road for about four hours while the scene was cleared.