Trump warns Iran against 'massacre' as protests erupt over jetliner downing

Iran has admitted that it shot down a Ukrainian airliner by mistake

Trudeau ‘outraged and furious’ following Iran’s admission about Ukrainian jetliner

Thousands of demonstrators filled the streets of Tehran Saturday following the Iranian government's acknowledgment that is unintentionally shot down a Ukranian airplane, killing all 176 passengers aboard-including 82 Iranians. He said it "undoubtedly helped" push Iran to acknowledge its responsibility. "Iran must take full responsibility", Canadian Prime Minister Justin Trudeau, whose country had 57 citizens on board, told a news conference in Ottawa.

The jetliner, a Boeing 737 operated by Ukrainian International Airlines, went down on the outskirts of Tehran during take-off, just hours after Iran launched a barrage of missiles at U.S. forces.

Iran this morning issued pictures of the two black boxes of the fallen plane, which contain information about the airliner, although it remains unclear whether he will give these boxes to investigators from other countries.

Ukrainian President Volodymyr Zelenskiy said Iran's acknowledgement was a step in the right direction but added, "The perpetrators must be held accountable".

"To the fearless and enduring Iranians: I have been with you since the beginning of my presidency, and my administration will continue to support you", wrote Trump.

President Hassan Rouhani said a military probe into the tragedy had found "missiles fired due to human error" brought down the Boeing 737, calling it an "unforgivable mistake".

Canada severed diplomatic ties with Iran in September 2012, closing its embassy and recalling all diplomats.

U.S. President Donald Trump and United Kingdom Prime Minister Boris Johnson had voiced similar suspicions.

Canadian Conservative MPs said Saturday Trudeau needs to list the Revolutionary Guard as a terrorist organization, and be prepared to impose sanctions on Iran if it fails to allow for a full worldwide investigation.

A senior administration official said Iran's downing of the plane was an "awful mistake" that is part of a pattern of what the official called reckless behavior.

Iranian Foreign Minister Mohammad Javad Zarif also said on Twitter that "human error at time of crisis caused by U.S. adventurism led to disaster".

European airlines should avoid Iranian airspace until further notice, the EU Aviation Safety Agency said, expanding on earlier advice that airlines should not overfly Iran below 25,000 feet (7.6 km). Washington said it was an accident.

"Apologise and resign", Iran's moderate Etemad daily wrote in a banner headline on Sunday, saying the "people's demand" was for those responsible for mishandling the plane crisis to quit. All 298 people aboard died.

Iran had been under mounting global pressure to allow a "credible" investigation after video emerged appearing to show the moment the airliner was hit.

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