But a spokesperson says Canadian officials are working to confirm that with local authorities.
The AirAsia jet had 162 people on board for a scheduled two-hour flight from western Indonesia to Singapore when it disappeared on Sunday.
Airline officials have said the majority of the people on the plane were Indonesian, but there were also three South Koreans, a Malaysian, a British national and his two-year-old Singaporean daughter, as well as a French captain.
Foreign Affairs Minister John Baird and the Minister of State for Consular Affairs Lynne Yelich say they were extremely saddened to hear of the loss of the airplane.
In statement Sunday, they say the thoughts and prayers of Canada are with the friends and family of the missing.
They also said that if people believe there are Canadian citizens on the plane, they should contact the federal government's emergency watch and response centre.
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