A 15-year-old boy has been “seriously injured” in a stabbing at a school in Sheffield.
Classrooms have reportedly been put into lockdown while police and paramedics rushed to the scene.
The teenager was knifed at the school gates of All Saints’ Catholic High School, with staff alerting parents to a ‘serious incident’.
The message sent to parents and guardians said: “Students will be released when police give permission.”
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