The incident took place at Kilbowie Primary on West Thomson Street.
Police are appealing for witnesses after windows and shutters were damaged at a Clydebank primary school.
The incident, at Kilbowie Primary on West Thomson Street, took place at around 6.40pm on June 10.
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Anyone with information can call police on 101, citing incident number 0599 of June 10.
Alternatively, call Crimestoppers on 0800 555 111.
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