NAPLES — Three teens face charges of terrorizing after authorities learned of threats against Lake Region High School on Facebook.

A 16-year-old boy from Casco was summonsed for misdemeanor terrorizing. A second 16-year-old boy from Casco was charged with terrorizing and violation of probation and was taken to the Maine Youth Center. Eighteen-year-old MacKenzie M. Dvorak, a Bridgton resident and former student, was summonsed for terrorizing.

The Cumberland Couny Sheriff’s Office was contacted by the school’s principal, Guy Stickney, today after learning from a teacher that threats of violence were being suggested against the school on Facebook.

The threats involved firearms and the shooting of “many” people in general terms, according to the sheriff’s office. No specific time frames were mentioned.