MARICOPA, Ariz. -- A large tire fire is burning at AZ Rubber Recycling. Fire crews are on scene with Karey Environmental Services and Pinal County Air Quality Control. Fire investigators reported that the tire pile covers about 10,000 square feet and is fully involved in fire. Fire crews are protecting the area and have contained the fire to the pile. Karey Environmental Services is actively working on "capping" the fire with soil.