California wildfire approaches Lake Tahoe after mass evacuation

The Caldor Fire burns as a chairlift sits motionless at the Sierra-at-Tahoe ski resort (AP)

A ferocious wildfire is approaching Lake Tahoe just hours after roads were clogged with fleeing cars as the entire California resort city of South Lake Tahoe was ordered to evacuate.

Communities just across the state line in Nevada have also been warned to get ready to leave.