It is understood the teacher, Mrs Ann Maguire, as stated on the school website, taught Spanish and RE and was the head of year 11 at Corpus Christi Catholic College in Leeds.
A 15-year-old boy has been arrested in connection with her death.
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Two men have been arrested after a man died following a suspected attack
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A dog handler has taken to social media to post the footage in an attempt to help bring the four-month-old Spaniel home.