Police probing an act of mischief to the COVID-19 testing centre at 29 Sperling Drive in Barrie.
The building is the former Barrie Police headquarters.
Several windows were damaged and broken, pylons and portable toilets had been tipped over on the property.
Police don’t believe the building was entered.
Anyone with information is asked to contact Barrie Police Cst. L. Opara at firstname.lastname@example.org. Any information can be provided anonymously to Crime Stoppers at 1-800-222-TIPS or leave an anonymous tip online at www.p3tips.com.