A TEENAGE girl was injured when three intruders walked into a Plymouth secondary school and one attacked her.
Staff had to intervene and stop the three intruders while the 15-year-old girl, who as left "bruised and shocked", was cared for by staff until police arrived.
Notre Dame School, in Derriford, says it has now instigated a policy of locking all doors and gates and is installing new security gates as soon as possible.
The attack happened at lunchtime on Wednesday, December 2.
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