Guelph police say a student is in custody and another is in hospital following a stabbing at College Heights Secondary School on the first day of class.
It happened inside the school at College Avenue and Centennial Road at around 3 p.m. on Tuesday.
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Police said another student was airlifted to hospital by Ornge air ambulance with serious, but non-life-threatening injuries.
It’s unclear what led up to the stabbing, but police said they would have more information on Wednesday morning.
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Several police vehicles could be seen around College Heights following the incident, including a forensic identification van.
Officers were seen going in and out of the school but cleared the scene at around 5:30 p.m.
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Any witnesses who have yet to speak with police are asked to call 519-824-1212. Anonymous information can be left with Crime Stoppers at 1-800-222-8477.
The Upper Grand District School Board said their crisis response team will be at College Heights to provide support to any students who require it.