According to the California Highway Patrol, the collision was reported around 2:48 a.m. on southbound Highway 14 just north of the 5 Freeway.

Sylmar, CA. – At least one person was injured in a rollover crash that happened early Thursday morning in Sylmar.
According to the California Highway Patrol, the collision was reported around 2:48 a.m. on southbound Highway 14 just north of the 5 Freeway.
Authorities said an unknown car overturned onto its side, blocking the slow lane under unclear circumstances.
Emergency personnel responded to the scene and transported at least one person to the hospital with major injuries.
An investigation is ongoing to determine what led to the collision.