WATCH: Canada has evidence Iran shot down plane

U.S. and Canadian officials say it is "highly likely" that an Iranian anti-aircraft missile downed a Ukrainian jetliner late Tuesday, killing all 176 people on board.

President Donald Trump is suggesting he believes Iran was responsible.

Canadian Prime Minister Justin Trudeau, whose country lost at least 63 citizens in the crash, said evidence indicates the plane was struck by a surface-to-air missile.

The crash came just a few hours after Iran launched a ballistic missile attack against Iraqi military bases housing U.S. troops amid a confrontation with Washington over a U.S. drone strike that killed an Iranian Revolutionary Guard general.