Update: 12:33 p.m.
Police say a lockdown has now been lifted at St. Michael Catholic High School in Kemptville.
Grenville County OPP say officers remain on scene and the investigation is continuing.
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St. Michael High School in Kemptville is currently under a lockdown.
Grenville County OPP say they are investigating a threatening message directed towards the school and, out of an abundance of caution, a large officer presence is at the scene.
School officials have placed the school under a lockdown.
You’re asked to avoid the area as the investigation continues.
More to come.