American and allied officials said on Thursday that they had intelligence that missiles fired by Iranian military forces were responsible for the downing of a Ukrainian jetliner and the deaths of all aboard this week in Iran, most likely by accident.
The disclosures suggested that the deaths were a consequence of the heightened tensions between Washington and Tehran that have played out since an American drone strike killed a top Iranian general last week.
Prime Minister Justin Trudeau of Canada, citing a preliminary review of the evidence, called for a full investigation “to be convinced beyond all doubt.” The jetliner was carrying

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