Two hospitalised after shooting at Oregon elementary school; gunman dead

A shooting has left "multiple victims" at an elementary school in the north-western US state of Oregon, police said Thursday, adding that the shooter is dead.

"We don't have confirmation yet who shot the suspect. It may have been a bystander. At this time, we have multiple victims," said Sheila Miller, a spokesperson at the Bend Police Department, in a press conference.

The Bend-La Pine School District said in a statement on social media that Silver Rail Elementary School was under lockdown.

An updated post later said law enforcement was escorting students in buses to a separate location, where families could reunite with their children.

Miller said that officers were alerted to respond to a critical scene at 1:00 pm local time, and that police were on the scene approximately two minutes later.

"Seconds later, we received word over the radio that the suspect in this incident was down," she said.

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Miller said medics had taken at least two people to a local hospital, adding that "we do not know their status."

The school is more than 100 miles (160 kilometres) south-east of the city of Portland. It serves primary-age students in kindergarten through fifth grade.

The United States, where firearms are readily available, is a frequent scene of gun violence, with thousands of people killed every year. It has the highest rate of gun-related deaths among all developed nations.

The deadliest school shooting in US history took place at Virginia Tech on April 16, 2007, when South Korean student Seung-Hui Cho killed 32 people and wounded 17 others before taking his own life.

There have been more than 360 mass shootings in the United States so far this year, according to the Gun Violence Archive, which defines a mass shooting as four or more people shot.