The attack has led to mourning across Canada and other parts of the world, with senior royals now releasing statements.

In a statement this afternoon, King Charles wrote: "My wife and I were profoundly shocked and saddened to learn of the most dreadful attack at Tumbler Ridge Secondary School in British Columbia. We can only express our deepest possible sympathy to the families who are grieving the unimaginable loss of their loved ones and those still awaiting news from hospital.

"In such a closely connected town, every child's name will be known and every family will be a neighbour. We can only begin to imagine the appaling shadow that has now descended across Tumbler Ridge and our hearts go out to all those whose lives have been so shattered by this senseless act of brutal violence.

"I very much wish to thank the town's staff police and staff at the health centre for their courage as first responders , and all those across British Columbia who have helped in every way they have.

"In sending our heartfelt condolences, my wife and I stand in solidarity with the people of Tumbler Ridge and all Canadians as they seek understanding, healing and strength."

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The Prince and Princess of Wales also released a statement this afternoon. They wrote: "We stand with all Canadians following this morning’s appalling tragedy.

"Our hearts are with the entire Tumbler Ridge community, and we extend our deepest condolences to the families and friends affected by this devastating loss.

"We are so thankful for the courage shown by the students, staff, and emergency responders who acted with selflessness in the face of such violence. W & C."