Authorities say a small plane has crashed into a high school in a small eastern Arizona town, but classes were out for the summer and there are no initial reports of injuries on the ground.

Apache County sheriff's Commander Matrese Avila says the small Cessna crashed into the Round Valley High School early Friday afternoon. Officials were evacuating homes in the neighborhoods east and north of the school.

Avila did not know how many people may have been on board the plane or if there were survivors.