Crews are continuing to battle a quickly-growing fire that sparked Wednesday morning in northwestern Arizona and spread to California.
RELATED: Fast facts on Topock Fire
Ground video from teams at the scene of the Topock Fire showed firefighters battling flames in brush areas as helicopters surveyed the pillars of smoke from above.
Watch raw videos in the player above.
As of 12:30 p.m. Wednesday the fire had spread to 500 acres with 5 percent containment. Fire officials said 450 acres had burned in Arizona and 50 had burned in California.
The blaze is reportedly considered suspicious and has prompted mandatory evacuations in the area.
