Iran dismissed as "highly politicized" on Friday a report by a special Canadian forensic team that accused the country of incompetence and recklessness over the downing of a Ukrainian passenger plane last year.

Iran has admitted it shot down the airliner shortly after takeoff from Tehran in January 2020, killing 176 people, and blamed a "disastrous mistake" by forces on high alert during a confrontation with the United States.

The dead included 55 Canadian citizens and 30 permanent residents.

Ottawa has repeatedly complained that Iran's official explanation did not answer many important questions about the downing of the Ukrainian plane.

Canada and other countries are seeking reparations for victims' families.