Police have confirmed that a 13-year-old boy has been stabbed by another pupil at St Columb's College in Derry.
The PSNI received a report shortly before six on Friday but the incident happened earlier in the day.
The boy injured in the stabbing was attacked by a 12-year-old boy.
He was treated in hospital for a stomach wound and later released.
The 12-year-old was arrested and released pending reports.