The Montreal-Trudeau International Airport said Friday afternoon that all flights to and from the U.S. have been temporarily suspended. The notice comes as the Federal Aviation Administration in the U.S. issued a nationwide ground stop for all departing flights ”due to extraordinary circumstances and reasons for safety." The FAA said the ground stop is related to air traffic control communications issues. A notice on the Montreal airport’s website states that flights to and from the U.S. are suspended “until further notice.” “Passengers are encouraged to check their flight status directly with their airline,” the airport said, adding that flight delays and cancellations are expected. More to come.