Rescue crews in Santa Barbara County have extended their search, days after deadly mudslides swept through the area.
At least 17 people have died due to the mudslides, caused by heavy rains.
Thick mud and sludge has filled in streets and caked over highways, making the work of rescue crews difficult.
At least 1,250 emergency workers are using drones in the air, and heavy equipment on the ground to work through the muck.