CASTAIC, Calif. (AP) — Firefighters fought to maintain the upper hand on a huge and rapidly moving wildfire that swept through rugged mountains north of Los Angeles and resulted in more than 50,000 people being put under evacuation orders or warnings.

Overnight water drops helped stop the spread of a huge wildfire churning through rugged mountains north of Los Angeles.

The Hughes Fire broke out late Wednesday morning and in less than a day had charred nearly 16 square miles of trees and brush near Lake Castaic.