news.bbc.co.uk/2/hi/americas/8685018.stm
Canadian fighter jets have escorted a Cathay Pacific airliner to land at Vancouver airport, military officials said.
The flight, which originated from Hong Kong, was under a potential unspecified security threat, the North American Aerospace Defense Command (Norad) said.
The plane landed without incident at about 1340 (2040 GMT), a Norad spokesperson said.
The plane has been towed to a secure area with the passengers on board.