CAVE CREEK, Ariz. - Firefighters battled a barn fire turned brush blaze Thursday afternoon in Cave Creek.

According to Rural Metro Fire and Medical, a two-story barn caught fire along with an RV parked next to it north of Cave Creek Road and Carefree Highway.

The structure fire then spread to burn five acres of nearby brush.

Firefighters from Rural Metro, Phoenix FD and Scottsdale FD kept the blaze from spreading to nearby homes and put out the flames in the barn.

One person was treated for smoke inhalation, according to Rural Metro.

No firefighters were injured and all animals have been accounted for in the fire.

It's not yet clear what started the fire, but arson investigators will be working at the scene Friday morning, according to the Maricopa County Sheriff's Office.