More than 50,000 people were under evacuation orders or warnings Wednesday as a huge and fast-moving wildfire swept through rugged mountains north of Los Angeles, but fire officials said a rapid ground and air assault was giving them the upper hand.

(Reuters) -Firefighters stopped the expansion of a new wildfire north of Los Angeles on Thursday after it spread rapidly, as California Governor Gavin Newsom signed a $2.5 billion relief package for the fire-devastated region.