A big-rig overturned on an off-ramp from southbound U.S. Highway 101 in San Francisco this morning, a California Highway Patrol officer said.

The solo-vehicle crash was reported at about 9:40 a.m. on the eastbound Cesar Chavez Street off-ramp from southbound Highway 101, CHP Officer Eric Anderson said.

The big-rig driver suffered minor injuries in the crash, Anderson said.

The overturned 16-wheeler was still blocking the off-ramp as of 10:05 a.m., he said.

Tow trucks responded to get the big-rig upright, but Anderson did not know when the off-ramp would be reopened.