Canadian Prime Minister Justin Trudeau said there would be unrest in his country "until there is justice and accountability" following Iran's admission that it mistakenly took down the Ukrainian Boeing 737-800 passenger jet on Wednesday.

According to CNN, Trudeau said in his speech late Sunday that "all Canadians were heartbroken" upon hearing the news that the Ukrainian jet was downed. The outpouring of rage came unsurprisingly when Tehran admitted that the tragedy was due to "human error."

Also in his speech, Trudeau called for transparency in the investigation that should further explain why the Ukrainian Boeing jet was met with a missile shortly after take-off. The Canadian leader said the world should expect unrest from Ottawa until there are "answers."

Aside from drawing international ire due to the downing of the passenger jet, Tehran is also faced with mounting pressure back home. Protesters have been out in the streets, calling for vengeance amid the deaths of their loved ones.

Some protesting parties called on Iran's Supreme Leader Ayatollah Ali Khamenie to step down from his position as masses mourned the deaths of 82 Iranians onboard the Ukrainian Airlines Boeing jet.

Ottawa previously said there were 57 Canadians on board, while other victims were said to be of German, Afghan, Ukrainian, and British nationality. Some of the passengers were students and others were visitors.

In one of the videos where Iranian protesters were being fended off by local authorities using tear gas, several protesters can be heard saying, "We will kill whoever killed our brothers." The video has yet to be verified.

The Iranian government initially denied Canada's earlier theory that the Boeing jetliner was downed unintentionally, a Quartz op-ed pointed out. The conflicting statements have become another point of frustration for many demonstrators who continue to call for clear answers.

It is also worth noting that the Ukrainian plane was hit by an Iranian missile hours after Tehran fired shots at two Iraqi bases where American troops were deployed. There were no casualties reported.

Confusion has also started spreading regarding the extent of Iran's military prowess amid its challenge against the U.S. following the death of its top military leader, General Qasem Soleimani.

A fellow at the Center for Strategic and International Studies, Eric Brewer, said the attack on Iraqi bases last week was "the first, not the final, shot from Iran," USA Today reported.

Brewer, whose focus is on Iran and related matters, further noted that while questions remain regarding Tehran's purpose for launching missiles on the said bases, the world should expect more action.