One woman was trapped inside a vehicle that ran off State Route 54 in National City, according to police.
The crash happened around 4:20 p.m. Thursday on the westbound SR-54 east of National City Blvd.
The driver said another vehicle forced her off the side of the freeway, where her car rolled over once and trapped her inside.
Crews had to stabilize the car before they could access the woman in her 30s.
Eventually, they were able to get rid of the windshield and pull her out. She suffered minor injuries in the crash.
One lane of the SR-54 has been shut down while the rescue operation played out, so traffic was backed up in the area.