POLICE have confirmed that a pupil at Bishop's was arrested earlier this week.
The student, who cannot be named for legal reasons, posted the material on a private account and uploaded it outside of school.
But it was targeted against members of the "school community".
Now Wiltshire Police has confirmed in a statement to this newspaper that it arrested a teenage boy on Monday (February 27) on suspicion of sending a threatening message and making threats to kill.
The force added: "The boy, a pupil at Bishop Wordsworth’s School has since been released on conditional bail while further enquiries are undertaken."
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