ALTAMONTE SPRINGS (CBSMimai/AP) — A central Florida teen who was fed up with a noisy group chat on her little sisters’ phone reportedly threatened to shoot up her school.

Altamonte Springs police say the 16-year-old was arrested after several parents alerted officials at St. Mary Magdalen Catholic School.

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The teen told investigators she was so annoyed by the sounds from a sixth-grade group chat that she took her sister’s phone and wrote: “Next person to say something is the first person I will shoot on the school shooting that will take place this Friday.”

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Police spokeswoman Michelle Sosa says detectives determined she didn’t intend to carry out the threat, but it still can’t be tolerated. It’s a felony under Florida law to make a written threat to kill or conduct a mass shooting.

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