A SHOCKING Twitter post by a government-linked Saudi Arabian account caused outrage after it appeared to threaten Canada with its own 9/11 attack.

The mocked up picture of a passenger plane being flown into the CN Tower in Toronto was shared by @infographic_ksa, which has 354,000 followers, today.

The caption read: "Sticking one’s nose where it doesn’t belong," and underneath that it said: "As the Arabic saying goes: ‘He who interferes with what doesn’t concern him finds what doesn’t please him'".

The post was later deleted after furious social media users likened it to the al-Qaeda led terror attack in New York on September 11, 2001, which killed 2,977 innocent people.

Fifteen of the 19 hijackers were Saudi Arabian citizens, while Saudi royals have long been accused of involvement in the attack.

The account later apologised saying: "Earlier we posted an image, which is why we deleted the post immediately.

"The aircraft was intended to symbolise the return of the Ambassador, we realise this was not clear and any other meaning was unintentional. We apologise to anyone who was offended."

The Twitter account itself was deleted on Monday afternoon on the orders of the Saudi government "until investigations are completed", the Washington Post reported.

Aviation analyst Alex Macheras said the account was connected to the Saudi royal court and it had been described as “an official government” account in Saudi-owned state media.

Elizabeth Tsurkov, a research fellow at the Israeli Forum for Regional Thinking, said: "Seems like they realised that reminding us that 15 of the 9/11 hijackers were Saudi is not a great idea".

@Zaidbenjamin said: "The graph raised concerns about an 9/11 reference. Of the 19 hijackers who took over the aeroplanes during the attack, 15 were form #SaudiArabia".

@MrMubin Shaikh tweeted: "The fools at @infographic_ksa should immediately be fired. Threatening a 9/11 style attack on Toronto??? That is some GALL, wellll beyond diplomatic comments made about activists."

The 1,814ft-tall CN Tower is Canada’s most famous landmark, where 500 people work, and welcomes 1.5million tourists very year.

It comes after a huge row erupted between the two countries over Canada’s criticism of Saudi Arabia for its continued jailing of women’s rights activists.

Saudi Arabia responded by freezing all new trade with Canada and expelling its ambassador over the "interference" in the desert kingdom’s domestic affairs, saying it was a violation of the country’s sovereignty.

A spokesman said: "The Kingdom of Saudi Arabia…will not accept interference in its internal affairs or imposed diktats from any country."

In response, foreign ministry spokesman Marie-Pier Baril said Canada would “always stand up for the protection of human rights, very much including women’s rights, and freedom of expression around the world."

Among those detained by Riyadh is Loujain al-Hathloul, 28, who appeared with the Duchess of Sussex, then Meghan Markle, at a One Young World summit in Canada two years ago where they were pictured in a Vanity Fair photoshoot.

Yesterday the leading Saudi women’s rights campaigner Manal al-Sharif thanked Canada for "speaking up" and asked when other Western powers would do the same.