Officials said they would cover cancellation fees, issue refunds and find alternative flights for stranded travellers, according to a story on the CBC National website.
"Throughout its long history, the Kingdom of Saudi Arabia has never accepted any interference in its domestic affairs by, or orders from any country", the country's foreign ministry wrote on Twitter, accompanied by a freaky and long-winded statement.
On Wednesday, Saudi Arabia said it was cancelling all medical treatment programmes in Canada and was moving citizens to hospitals outside of the country. They froze trade with Canada and suspended the scholarships of about 5,000 Saudi students studying in the country.
McMaster University says it has about 150 Saudi students in the faculty of Health Sciences and another 40 in other programs.
Last week, Canada's Ministry of Foreign Affairs expressed concerns over the arrests of seven Saudi civil society activists. "We can only stand with Saudi Arabia in defending its sovereignty and taking the necessary measures to protect its laws", Anwar Gargash, the minister of state for foreign affairs in the United Arab Emirates, tweeted Monday. Samar was recently arrested for her vocal protests and activism against the repressive "male guardianship system" within Saudi Arabia for which she won the U.S. International Women of Courage Award in 2012.
The true impact of Saudi Arabia's flexing of diplomatic muscle is still unclear.
Saudi Arabia has expelled Canada's ambassador, recalled its own envoy and cut off trade ties with Ottawa after the USA neighbor denounced a crackdown on rights activists in the kingdom.
Human rights advocate and former Canadian justice minister Irwin Cotler denounced the Saudi decision to pull students out of the country.
"Hopefully, this thing blows over", said Reid, who noted his union fully supports Ottawa's decision to call out human rights abuses and abuses against women in Saudi Arabia.
Saudi Arabia also called backed its ambassador from Ottawa and ordered Canada's chief envoy out of the country.
In recent months, Saudi Arabia has reacted more aggressively against countries that it perceives as intervening in its internal affairs.
European traders said on Tuesday that Saudi Arabia's main wheat-buying agency has told grains exporters it will no longer accept Canadian-origin wheat and barley.
A Saudi government source told The Globe and Mail that more than 15,000 Saudis are studying in Canada on government funded courses or grants.
'It is now time for other governments to join Canada in increasing the pressure on Saudi Arabia to release all prisoners of conscience immediately and unconditionally, ' said Samah Hadid, Amnesty International's Middle East campaigns director.
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