OKLAHOMA CITY (AP) - Authorities say multiple structures have been damaged or destroyed by a wildfire in eastern Oklahoma County.

At least two people have been treated at the scene for smoke inhalation, but there have been no reports of more serious injuries.

Oklahoma County Emergency Management Director David Barnes says he didn't know how many structures had burned, but said they included houses, mobile homes and outbuildings. Barnes says homes between Post and Anderson roads and between 63rd Street and Wilshire Boulevard were being evacuated.

Gov. Mary Fallin says she is keeping a close watch on the wildfires raging in parts of Oklahoma. Fallin said Wednesday afternoon that the state Emergency Operations Center is in operation, and will coordinate first responders and evaluate what is needed.

Fallin says a state of emergency is in effect, which will help counties make emergency purchases. She says officials will evaluate whether they need to apply for federal assistance.

The Red Cross has set up a shelter at First United Methodist Church in Jones.The Oklahoma National Guard says UH 60 Blackhawk helicopters equipped with 600-gallon buckets are dropping water on that fire.