Officials are investigating after bomb threats were made at several major Canadian airports earlier today.

NAV Canada was made aware of threats affecting facilities in Ottawa, Montreal, Winnipeg, Calgary, Edmonton and Vancouver.

Air traffic control towers were evacuated, and temporary ground stops were put in place at the affected airports.

The air traffic control service says delays are possible, and encourages travellers to check with their airline.

Early this morning, NAV CANADA was made aware of bomb threats affecting facilities in Ottawa, Montreal, Edmonton, Winnipeg, Calgary and Vancouver. Employees at impacted locations are safe, and a temporary ground stop has been implemented at the affected airports.

We are…

— NAV CANADA (@navcanada) July 3, 2025