A tractor-trailer rollover near Camp Pendleton triggered a major traffic shutdown on the south 5 early Wednesday morning, leaving commuters facing miles of delays.
The crash occurred near the Aliso Creek Rest Area.
The California Highway Patrol issued an alert at around 4:30 a.m. Wednesday after the big rig overturned, spilling debris — including dozens of what appeared to be FedEx boxes — across the roadway, according to the agency.
By 6:45 a.m., authorities had reopened all northbound lanes. However, the southbound side remained heavily affected, with only the far-left lane open to traffic. The three right southbound lanes and the far-right northbound lane were closed to allow crews to clear the wreckage and cargo.
Caltrans and CHP officials advised motorists traveling through North County to expect significant delays throughout the morning commute and recommended using alternate routes.
The cause of the crash is under investigation.
Officials have not yet confirmed if there were any injuries.
