Tamarack Fire spreads into Nevada from California

The Tamarack Fire burning near Lake Tahoe has spread into Nevada while the Dixie Fire in Butte County grew by another 20 square miles overnight. Here are the latest details about the major California wildfires.

Harmful particles in wildfire smoke pose a significant health risk

Smoke and ash from massive wildfires in the American West have clouded the sky and led to air quality alerts on parts of the East Coast. The effects of the blazes were felt 2,500 miles away as haze hung over New York City, New Jersey and Pennsylvania.

PG&E admits it possibly ignited massive Dixie Fire

PG&E has acknowledged that its equipment possibly started the huge Dixie Fire, burning in the Sierra Nevada range. The admission comes as several major fires continue burning in California, including the River Fire, near Yosemite National Park, and the Tamarack Fire, burning in the Lake Tahoe region.