According local authorities, Red Lake Senior High School in Beltrami County, northern Minnesota, was locked down Monday while law enforcement officers were doing an active police search on the grounds.

Red Lake Senior High School on Lockdown in Beltrami County

While police and detectives investigated an unexplained event at the school, students and employees were told to find shelter. As deputies worked to secure the scene and establish the character of events, law enforcement cars were observed near or on campus.

Officials with the Beltrami County Sheriff's Office, which offers law enforcement throughout the county, have not disclosed specifics on the particular threat or activity triggering the lockdown. No details have been given regarding any suspects, arrests, or wounds.

Automatic alerts from the school district warned parents and guardians of the lockdown and advised them not to come to the campus until more information was available. As the inquiry develops, district officials will provide updates.

Authorities in Beltrami County keep looking into the circumstances. More information will be made public as it surfaces.

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