Canadian Foreign Minister Francois-Philippe Champagne told reporters on Saturday (February 15) that "the best antidote to conspiracy is transparency" and demanded that Iran share its black boxes to be assessed by international authorities.

Foreign ministers from Afghanistan, Canada, Ukraine, Great Britain and Sweden met on the sidelines of the Munich Security Conference as part of the International Coordination and Response Group for the victims of Flight PS752.

It was the group's second in-person meeting to discuss the ongoing investigation into a Ukrainian passenger plane shot down in Tehran in January.

Canada's Prime Minister Justin Trudeau said he had "impressed upon" Iran's foreign minister on Friday that a complete and independent investigation had to be carried out.

Iran has rejected Trudeau's call to send the "black box" flight recorders from the plane abroad to be decoded.

Many of the 176 who perished in the disaster were Iranians with dual citizenship, which is not recognised by Iran. Canada had 57 citizens on board.