The school has been cleared and the children are in a safe location.
Sheriff's Investigators confirm that there are at least three deaths, including the suspected shooter.
Officers are now investigating at least five scenes in and around the school today.
"It's a very sad day for us in Tehama County", said the deputy, who was visibly shaken by events.
Several children have been transported to the hospital. The child had two gunshot wounds, according to emergency scanner traffic. "Multiple students" were airlifted from the scene, with a 6-year-old reportedly among the injured.
Local media reports that there was an active gunman at the school and there were confirmed injuries.
The incident was reported around 8:15 a.m.
Multiple shots were fired at about 8am local time at the Rancho Tehama School on the outskirts of Corning.
"Our doors are locked", she said.