Iran says it will let Canadian investigators join plane crash probe

Iran's civil aviation authority says it has invited Canadian investigators from the Transportation Safety Board to join a growing team probing the plane crash outside Tehran that killed 138 people believed bound for Canada. The statement posted online said representatives from Ukraine International Airlines, the plane's operator, arrived in Tehran today to begin the work. That announcement came as Foreign Affairs Minister Francois-Philippe Champagne spoke to his Iranian counterpart about Wednesd