The Islamic Kingdom made the decision in retaliation to a Global Affairs Canada's tweet that expressed concerns about the arrests of civil society and women's rights activists in the country, including Samar Badawi - the sister of jailed blogger Raif Badawi, who's wife and three children recently became Canadian citizens.
The Canadian Foreign Minister, through a spokeswoman, justified the interference in the domestic affairs of another country by saying that Canada stands up for women's rights, human rights, and freedom of expression.
Canada's decrying the arrest of two female activists in Saudi Arabia clearly rubbed that country the wrong way.
In her first public response to the escalating situation with Saudi Arabia, Canada's Foreign Minister Chrystia Freeland said the North American country was "seriously concerned" about the Kingdom's actions, and is "seeking greater clarity".
In recent months Saudi Arabia has lifted a ban on women driving, but it has also arrested activists, including more than a dozen high-profile campaigners for women's rights.
The Education Ministry began developing a plan to remove thousands of Saudi scholarship students out of Canadian schools and into schools in other countries.
It's just one of the measures taken by the kingdom in a diplomatic dust-up triggered by Ottawa's criticism of detentions of human rights activists in the Middle Eastern nation.
"We're reaching out ... to identify their circumstances, what their needs are, whether they have families with them", she said. Raif was arrested in 2015 and has been sentenced to seven years in prison as well as 1,000 lashes for "insulting Islam".
'Canada will always stand up for human rights, in Canada and around the world, and women's rights are human rights, ' Freeland told an audience in Vancouver.
It also has 216 medical residents and fellows from Saudi Arabia who are being trained in hospitals affiliated with the university under a long-standing program.
'We consider the Canadian ambassador to the kingdom persona non grata and order him to leave within the next 24 hours'.
His case long has been raised by worldwide human rights groups and Western diplomats, including Canadians, who have called on Saudi Arabia to free him.
A Saudi Arabian youth organization is apologizing after after posting an image on Twitter appearing to show an Air Canada plane heading toward the CN Tower in a way that is reminiscent of the 9/11 attacks in the U.S.
The issue that led to this diplomatic impasse involves Saudi police arresting human-rights activist Samar Badawi and others last week.
"So neither Saudi nor Canada are going to be affected much by stopping the wheat and barley trade".
Saudi Arabia doesn't want to be lectured to by the West and they are delivering the message.