A 16-year-old has shot dead three children and a teacher at a primary school in the US state of Oregon before he was killed by a bystander, police said, BBC reports.
The suspect, who has not been named, forced his way into Silver Rail Elementary School in the city of Bend on Thursday afternoon by shooting at locked doors, Bend Police Chief Mike Krantz confirmed.
The teenager was shot dead by a community member who "pursued him into the school and engaged him", Krantz said. Police arrived three minutes later.
The three children killed were aged five, eight and 11. A seven-year-old and a 54-year-old teacher were taken to a hospital in a critical condition. It is unclear if the attacker had any links to the school.
"We are stunned and heartbroken by this senseless tragedy," Steven Cook, the top administrative official of the local school district, said in a statement.
"No words can adequately express the grief our community is experiencing."
Police said the attacker was a local 16-year-old boy, but they did not release any further details on him or the identity of the victims.
Police were alerted to an active shooter at Silver Rail Elementary at 12:59 local time (19:59 GMT), Bend Police Department spokeswoman Sheila Miller told reporters.
The first call came from a person who said that an unknown suspect was shooting into their car with a long gun, police said. Photos released from the scene show a red truck with bullet holes.
Minutes later, the local county dispatch received 911 calls reporting that the attacker had entered the school.
