A small aboriginal community in western Canada was in mourning on Saturday after a high school student shot dead two brothers and two trainee teachers and left several others wounded, AFP reports.
Friday's shooting occurred at a home and then at a nearby school in remote La Loche, in Saskatchewan province, Canadian police and other sources said.
Prime Minster Justin Trudeau called it "every parent's worst nightmare."
The suspected shooter, who has not been named, was taken into custody after police received an emergency call about "a person discharging a weapon in the community," RCMP superintendent Maureen Levy told reporters.