Northbound Interstate 77 is shut in Huntersville early Friday afternoon after a tractor trailer jack-knifed just north of the Gilead Road exit, firefighters said.
The wreck happened around 12:30 p.m. near Exit 23. State highway officials said it could take until 4 p.m. to clear the scene.
N.C. DOT cameras show traffic stretching for a few miles. Traffic is being diverted off the interstate at Gilead Road for now.