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Fire crews battle Angeles National Forest blaze

Patrick Fallon / Reuters

A wildfire burns the hillside during sunset in the Angeles National Forest near Glendora, California, on September 3, 2012.

David McNew / Getty Images

A U.S. Forest Service Hotshot crew member carries a chainsaw as firefighters work to contain the Williams fire in the Angeles National Forest on September 3, 2012 north of Glendora, California.

Patrick Fallon / Reuters

A cat walks past mobile homes in the Camp Williams Mobile Home Park as a wildfire burns on the hillside above in the Angeles National Forest near Azusa, California, September 3, 2012.

NBC News staff and news services report — A wildfire in Southern California's Angeles National Forest that cut short weekend holiday plans for hikers and campers grew to 4,000 acres on Monday.

The Williams fire prompted the evacuation of about 12,000 visitors who had flocked to campgrounds for the holiday weekend, The Associated Press reported. It sent a towering plume of smoke that could be seen from many parts of the Los Angeles basin. Read the full story.

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In California, massive flames and smoke from a wildfire at the Angeles National Forest near Los Angeles, chased away thousands of holiday campers. TODAY's Natalie Morales reports.