At least five people are dead, including the gunman, after a shooting Tuesday in Northern California's Tehama County, Assistant Sheriff Phil Johnston said.
The violence began at a home and ended at Rancho Tehama Elementary School, where one student was shot.
"I know that we have Medivaced a number of students", the official said, referring to the use of helicopters for the emergency transport of victims to hospitals.
"I'm told the suspected shooter was deceased by law enforcement bullets", Mr Johnston said.
There were a total of 10 people injured, and Tehama County Superintendent of Schools Rich DuVarney said no students or staff at the school were among the fatalities.
The shooter is understood to have been killed by law enforcement authorities.
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TM and © Copyright 2017 CBS Radio Inc. and its relevant subsidiaries. Three other people were transported to a hospital in Redding, approximately 50 miles away.
At least three children and one adult were brought to the Enloe Medical Centre, in Chico, California, the hospital confirmed to KHSL.
"The insane thing is that the neighbour has been shooting a lot of bullets lately, hundreds of rounds, large magazines", Mr Flint said.
Police were still trying to get an accurate count of the injured, Johnston said.
Tehama, the community in which the shooting occurred, is about 210km north of Sacramento and has a population of just 3500. Flint says he had been shooting "hundreds of rounds" from large magazines.
Brian Flint told local media his neighbor was the shooter, and that the neighbor had stolen his truck.