The officials said there is no known threat associated with the plane, but it was escorted to John F. Kennedy International Airport as a precautionary move.

Authorities on Friday were investigating whether suspicious packages shipped aboard cargo planes from Yemen to the US were part of a terrorist plot.

FBI spokesman Richard Kolko said the plane — Emirates Airlines Flight 201 which took off from Dubai — was met at JFK by FBI and Port Authority police. He said the action was being taken solely because the plane was carrying cargo from Yemen.

John Cornelia, a spokesman for US North American Aerospace Defense Command, said the airliner was escorted by a Canadian fighter to the US border, where two US

fighters took over.

US fighter jets routinely escort airliners when there may be a problem in order to observe the aircraft and be prepared to take any action if necessary.