Fire crews are fighting a growing brush fire that sparked Wednesday in Pinal County.
According to the Arizona Department of Forestry and Fire Management, the fire is estimated it to have grown to over 200 acres with 40 percent containment on Thursday afternoon.
The fire, known as the River Fire, is active on the southeast side.
Approximately 80 firefighters are on scene battling the blaze.
No structures are currently threatened as the fire burns in salt cedar and vegetation, and Davila said no injuries had been reported.
Officials said it was too early to determine how the fire started.