Timeline: A look at Canada's relationship with Iran, before and after the PS752 crash by Mia Rabson, The Canadian Press Posted Jan 7, 2021 2:09 pm EDT Last Updated Jan 7, 2021 at 2:14 pm EDT In this Wednesday, Jan. 8, 2020 photo, rescue workers search the scene where a Ukrainian plane crashed in Shahedshahr, southwest of the capital Tehran, Iran. Canada's foreign minister says he's asked for international help to pressure Iran to give up the black boxes recovered from the wreckage of Ukraine International Airlines Flight PS752. THE CANADIAN PRESS/AP-Ebrahim Noroozi OTTAWA — It has been 66 years since Canada and Iran established diplomatic ties. Those had frayed and been mended many times before the crash of a Ukraine International Airlines flight near Tehran killed all 176 on board, including at least 55 Canadian citizens and more than 100 people with ties to Canada.