Flight departures at Canadian international airports in Montreal and Ottawa have been cancelled following a bomb threat, the Federal Aviation Administration of the US has announced.

Specifically, Macdonald-Cartier International Airport in Ottawa said X is investigating a security incident and warned that flights may be disrupted, urging travelers to check their flight status.

The Ottawa Police also advised X that they are investigating a security incident at the airport. The airport and police did not provide details on the cause of the flight disruption.

Authorities at the Montreal airport were not immediately available for comment.