Four people have been killed and several schoolchildren wounded in a series of shootings in northern California.
The gunman was shot dead by police after he opened fire at a primary school in Rancho Tehama Reserve on Tuesday morning.
At least 10 people including three children were being treated in hospital after the attacker began "randomly picking targets", police said.
Tehama County Assistant Sheriff Phil Johnston said one child had been shot at the school and another was shot in a truck with a woman who was also wounded.
He told reporters: "Multiple shots were fired in Rancho Tehama. That evolved into multiple victims and multiple shots at the elementary school."
Investigators recovered a semi-automatic rifle and two handguns following the shootings which were first reported at around 8am local time (4pm GMT).
Sky News' US correspondent Greg Milam said the school did not appear to be the primary target and the shootings began with a domestic violence incident at a house.
Police believe the attacker opened fire at seven locations, he said.
Brian Flint told local newspaper, the Record Searchlight, that his neighbour carried out the attack and his roommate was among the victims.
"The crazy thing is that the neighbour has been shooting a lot of bullets lately, hundreds of rounds, large magazines," Mr Flint said.
"We made it aware that this guy is crazy and he's been threatening us."
Jeanine Quist, an admin assistant with the Corning Union Elementary School District, said no one was killed at the school.