Palm trees catch fire as the wind blows a fast moving wildfire in Yorba Linda, California November 15, 2008. A wildfire whipped up by hurricane-force gusts raged through northwestern Los Angeles foothills on Saturday, burning homes and threatening the power supply of California's largest city.[Agencies]

A firefighter removes a scorched American flag as he works to contain a wildfire fuelled by strong winds in the Sylmar area of Los Angeles November 15, 2008. A fast-moving wildfire in suburban Los Angeles is a threat to the city's power supply, Mayor Antonio Villaraigosa said on Saturday.[Agencies]