An Ontario mother witnessed her son's stabbing death outside of his school

Emergency crews attend the scene of a fatal assault outside Sir Winston Churchill Secondary School on Oct. 7 2019

Emergency crews attend the scene of a fatal assault outside Sir Winston Churchill Secondary School on Oct. 7 2019

Police say a "serious assault" took place Monday afternoon and approximately an hour-and-a-half later the boy had died from his injuries. He was later pronounced dead in hospital.

Three people have been arrested in connection with the stabbing and authorities continue to look for at least two other suspects, the release said.

Police say that they have obtained video footage of the incident and are confident that they will track down the remaining two suspects, CBC reports.

The first suspect is described as a light-skinned black female, in her early teens, with long black hair.

Bereziuk said the name of the 18-year-old accused is protected under the terms of a publication ban, while the Youth Criminal Justice Act shields the identities of the younger suspects.

"It should be known that this incident was captured on video". She may also have had a black T-shirt with white writing on it. The school will have support staff on hand to help students cope.

Bereziuk said the victim's mother was with him when he was fatally attacked but did not know why she was there.

Bereziuk said police believe there was a relationship between the suspects and the victim, although he wouldn't elaborate on what that relationship was. Residents in the area who find anything suspicious on their property are urged not to touch the item but to contact 9-1-1 immediately.

Charges have not yet been laid. However the order was lifted at around 2:40 p.m.

The assault temporarily sent the high school, along with W.H. Ballard, Parkdale, Rosedale, Viscount Montgomery and St. Eugene Catholic elementary schools, and nearby daycares into hold and secure.

The Hamilton-Wentworth District School Board said the entire community shares in the grief. "There are no words that can begin to describe how shocked we are to learn about this loss", Manny Figueiredo, the board's director of education, said in a statement.

"Our thoughts are with the student's family and loved ones", the school stated.

This is Hamilton's ninth homicide of the year.