Firefighters were slowly making progress in their battle to contain the inferno that has razed swathes of Los Angeles' Pacific Palisades neighborhood to the ground, but still-spreading flames threatened communities in the populous San Fernando Valley on Sunday.

Those looking to assist residents affected by the Los Angeles County firestorm have a number of options to donate money, materials or their time.

Fire crews are working to contain a new wildfire that has erupted near the Hanson Canyon Dam in the northeast San Fernando Valley. Sky 5 is overhead.