Canadian flags are being lowered to half mast all over the country today in honour of the victims of the Ukrainian jetliner that crashed in Iran on Wednesday, killing all 176 people on board.

Of the 176 passengers on board the plane, 63 were Canadian. According to Prime Minister Justin Trudeau, the flight was headed for Kiev from Tehran, but 138 of the passengers were connecting to Canada.

Trudeau requested to have the flag on the Peace Tower in Ottawa lowered to half mast until further notice in memory of the victims of the plane crash.

The Prime Minister has requested the flag on the Peace Tower be lowered to half mast until further notice in memory of the victims of the plane crash in Iran. #ukraineplanecrash #cdnpoli pic.twitter.com/hfDI0ijRe8

— Sarah Sears (@iamSas) January 8, 2020

Others organizations and institutions in the country, and even internationally have followed suit. 

Many of the victims of the crash called cities in the GTA home. Six students from the University of Toronto were on the plane. 

U of T flag half-mast today in honour of those students lost in the plane crash #ukraineplanecrash pic.twitter.com/VHn4EaFfZI

— Sina (@squatti_potti) January 8, 2020

A number of the passengers aboard the plane were reportedly students and university staff from Canada returning at the end of the holidays. 

Four students from Western University in London Ontario were victims in the crash. 

The Canadian flag at #LdnOnt City Hall has been lowered to half-mast in honour of the victims killed on Flight PS752 in Tehran. Four @WesternU students were among 63 Canadians killed in the crash, which claimed 176 lives in total. Our hearts are with their loved ones.

— Ed Holder (@ldnontmayor) January 8, 2020

The University of Manitoba reported that three people on the plane were alumni of the University. Other victims on the plane worked or studied at the Univeristy of Guelph, the University of Windsor, and The University of Alberta. 

Sincere condolences to those who have been directly affected by the loss of classmates, friends, students, colleagues and family members. Our hearts go out to you all in this time of grief. https://t.co/iPq3Lr7t2Y

— University of Manitoba (@umanitoba) January 8, 2020

The Toronto District School Board said in statement that a number of families from their schools were affected by the plane crash.

We are heartbroken to learn that a number of TDSB students & their family members, along with a family member of at least one of our employees are among those who lost their lives in the crash of the UIA flight in Iran yesterday evening. https://t.co/SnLoEHF8SY

— Toronto District School Board (@tdsb) January 8, 2020

Students, teachers, and staff were believed to be on the plane. The TDSB confirmed that 15-year-old student Maya Zibaie was a victim of the tehran plane crash.

Flag at half mast outside Northern Secondary School wh re 15-year-old Maya Zibaie went. TDSB confirms she was a victim of the #tehran plane crash. pic.twitter.com/00Uz4cFLmQ

— Matthew Bingley (@mattybing) January 8, 2020

A number of Canadian embassies across the globe have also lowered flags to half mast in honour of the lives that were lost in Tehran yesterday.

In memory of those perished on the fatal #PS752 crash in Iran yesterday, 🇨🇦 joins 🇺🇦 in remembering the victims on this day of mourning. Our flag today is at half-mast as we think about all those who lost their loved ones. pic.twitter.com/TnHj7k6iwx

— Canada in Ukraine (@CanEmbUkraine) January 9, 2020

Victims on the plane were also from Iran, Ukraine, Sweden, Afghanistan, the United Kingdom, and Germany.