One person was shot dead and four students wounded in a school cafeteria by a student who then took his own life, police in the US state of Washington have said.
The shooting occurred at Marysville Pilchuck High School near Seattle.
The four students, including two cousins of the gunman, were shot in the head, with three severely wounded.
Officials said the gunman, identified by local media as Jaylen Fryberg, died at the scene.