Updated Jan 9, 2020

Canada’s Justin Trudeau says evidence indicates Iranians shot down airliner

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What we know: Ukrainian Boeing 737 crashes in Tehran

Search and rescue teams at the site of the plane crash near Imam Khomeini Airport in Iran, Jan. 8. Photo: Fatemeh Bahrami/Anadolu Agency via Getty Images

A Boeing 737-800 Ukraine International Airlines plane crashed in Tehran shortly after taking off from Tehran's Imam Khomeini International Airport on Jan. 8, killing all 167 passengers and nine crew members.

The latest: The Iranian government has agreed to send the black boxes from the downed jetliner to Ukraine, suggesting it cannot be read in Iran and providing little further detail, according to an unnamed Iranian official per AP. American, French and Canadian experts will help analyze the data in Ukraine.

Go deeperArrowUpdated Jan 18, 2020

Iran says it mistakenly shot down Ukrainian passenger plane

Search and rescue workers at the site after a Boeing 737 plane belonging to a Ukrainian airline that crashed near Imam Khomeini Airport in Iran just after takeoff. Photo: Anadolu Agency/Getty Images

Iran announced in a statement on Saturday (local time) that its military mistakenly shot down a Ukrainian passenger jet that crashed on Wednesday, killing all passengers aboard, according to multiple reports.

What they're saying, per the Iranian military's statement: The Boeing 737 jetliner operated by Ukrainian International Airlines “took the flying posture and altitude of an enemy target” as it came close to an Iranian military base, and “under these circumstances, because of human error,” the plane “came under fire,” the New York Times writes.

Go deeperArrowJan 11, 2020

Iran escalation ends in tragedy and outrage

Riot police and demonstrators on Saturday near Tehran's Amir Kabir University. Photo: STR/AFP via Getty Images

Twelve days in which war between the U.S. and Iran seemed to loom ever closer began and ended with apparent Iranian mistakes.

The big picture: Iran is under growing pressure at home and abroad, while President Trump appears emboldened. But Trump is also facing criticism in Washington for failing to substantiate claims of an "imminent" threat, and overseas for his role in driving the escalation.

Go deeperArrowJan 14, 2020