Classes are being cancelled at a Winnipeg high school Wednesday because of a threat.

The superintendent of Louis Riel School Division, Christian Michalik, said in messages to families the threat to Windsor Park Collegiate, identified last week, made reference to the date of Feb. 25.

Michalik said as a result students have to stay home out of an abundance of caution because it’s not known at this time who’s behind the threat.

“The school and division have continued to work closely with the Winnipeg Police Service as part of an ongoing investigation,” Michalik said.

“This work has included extensive efforts to identify the origin of the threat, including far-reaching interviews with students. Regrettably, despite these efforts, the individual or individuals responsible have not yet been identified.”

While the school building will be closed to students on Wednesday, he said staff will be there and will connect with students via video to check in on their well-being and offer help as needed.

Classes at other schools in the division will carry on as usual, Michalik said.

The superintendent was not available for an interview Tuesday, a division spokesperson said.

Winnipeg police said in a social media video yesterday schools in the city have received a number of threats over the past several days.

School resource officer Const. Bryan Foltz was quoted in the video saying each threat is treated as real and while none of the threats have been determined to be credible, arrests have been made. 

Foltz said the threats cause significant disruptions for students, families and staff, leading to police investigations and school lockdowns.

“Making threats, even as a joke, online or in a group chat is a criminal offence,” Foltz said.

CBC has requested an interview with Winnipeg police on the threats.

Michalik said in a Feb. 23 message to families the division is continuing to work with police, it will lock all doors at the school moving forward with one dedicated access point, and additional divisional staff will be at the school.

Classes will continue at Collège Béliveau on Wednesday, with the added precaution of monitored access to the building at designated entrances, Michalik said in a letter to families at that LRSD facility.

This latest incident comes just two weeks after one of the deadliest mass shootings in Canadian history occurred in Tumbler Ridge, B.C. on Feb. 10. Eight people were killed. Six of those killed — three girls, each aged 12, two boys, 12 and 13, and a female educator, 39 — were shot at the school.