Rock slide on US 101 hits multiple vehicles in Marin

MARIN, Calif. (KTVU) - The California Highway Patrol has issued a Sig-Alert following a rock slide that damaged vehicles traveling along the southbound lanes of US 101 in Marin.
The incident was reported at 6:25 p.m. just south of the Marin City off-ramp.
Hundreds of golf ball-sized rocks fell from a hillside along the right of the freeway, bringing traffic to a halt in the right three lanes.
There's no word if anyone was injured, or if any cars collided as a result of the rock slide.