Online threat cancels classes at high school in DDO

There will be no classes at Ecole secondaire des Sources in Dollard des Ormeaux Thursday.

The school took the precautionary measure to close for the day after receiving an online threat.

Police are investigating.

It's the second time this week a West Island high school will be closed following a threat on social media.

Beaconsfield High School was shut down Tuesday because of a threatening post, but the threat was unfounded and targeted a high school in Georgia with the same initials. 

A 16 year old was arrested in that case and faces charges related to terrorism and disruption of a school.

Montreal police say the two incidents are not related.