Crews continued to battle the massive 4,000-acre Holy Fire on August 7.

More evacuations were prompted as the fire, which began the day before, drew closer to populated areas. No structures were threatened at the time of writing.

A dozen firefighting helicopters conducted water drops over the blaze, which was spreading towards Horsethief Canyon. Around 600 helicopters were involved.

This video, filmed at around 5 pm, shows a plane releasing retardant onto the fire.

The cause of the fire has not been reported.