Mounties in Edson, Alta., have charged one 15-year-old with uttering threats after an investigation at a high school Friday afternoon. Parkland High School students told administration that a student had warned them the day before to not go to school. The school was put in a hold and secure while RCMP interviewed students. They confirmed everyone in the building was safe. A 15-year-old student, who cannot be named under the Youth Criminal Justice Act, was arrested without incident. Mounties believe the school was not in immediate threat. Edson is approximately 200 kilometres west of Edmonton.