Tehama County Assistant Sheriff Phil Johnston told a TV station that the authorities are investigating at least five crime scenes at a school around 130 miles away from Sacramento. Students also were shot and wounded at an elementary school.
According to KCRA in Sacramento, the first shots were fired around 8 a.m. PT at Rancho Tehama School on the outskirts of Corning, California.
Johnston said officials did not have an accurate count of the total number of people injured in the shooting that unfolded across at least seven locations. The shooting is believed to have begun as a domestic violence incident at home.
It said initial reports indicated the shooter had barricaded himself inside a building before being shot by police.
"He said he saw bullets strike the truck in front of him and he put his children down to protect them and put his truck to. reverse", Schultz said on Twitter.More news: Nicki Minaj's Brother Jelani Maraj Found Guilty of Child Rape
There were at least 100 law enforcement officers on site, he said.
Officials said they recovered a semi-automatic rifle and two handguns from the shooter.
One student at the elementary school was hit by gunfire and transported to the local hospital for treatment, Johnston said.
The FBI has confirmed it will assist in the investigation.
Initial reports said somebody was barricaded in a structure and there were multiple victims, including one who was dead. A man in the area said his roommate was among the victims in Northern California and that his neighbor was the gunman. Flint says he had been shooting "hundreds of rounds" from large magazines. "This guy has been insane, and he's been threatening us and everything. We offer our condolences to the families who lost loved ones and unite with all Californians in grief".