A wildfire in northern Arizona has grown thousands of acres in just a few days as firefighters continue to work to regain containment.

A fierce blaze that has burned along the Grand Canyon's North Rim since being sparked by lightning on July 4 has exploded in size in recent days, reaching "megafire" status and becoming the largest wildfire in the U.S. this year, according to the Arizona Republic.

Driven by high winds and parched conditions, Arizona’s Dragon Bravo Fire has exploded to nearly 472 square kilometers, making it one of the ten largest wildfires in the state’s history. The blaze, ignited by a lightning strike on July 4 inside the