By CBS13 Staff

SACRAMENTO COUNTY (CBS13) — Lanes were blocked along northbound Highway 99 just south of Elk Grove due to a crash involving a box truck early Tuesday morning.

The crash happened just before 4:30 a.m. near the Dillard Road offramp.

READ MORE: 45 Structures Now Destroyed As Dixie Fire Grows To 244,888 Acres

READ MORE: Man Arrested For Starting Fire Near Thermalito

Exactly what led up to the crash is unclear, but it appears that the box truck was the only vehicle involved.

Initially, both the #1 and #2 lanes along northbound Highway 99 were blocked. All lanes along the northbound side just south of Grant Line Road were then blocked, Caltrans says.

Traffic was being diverted at Dillard Road.

The lanes were reopened just before 8 a.m.

MORE NEWS: 'It Meant The World To Me': Oakdale Officer Thanks Citizens Who Helped Him After Hit-And-Run

Drivers should expect residual traffic through the morning.