Emirates Airline, the Arab world's largest carrier, said its fleet of Airbus A380 aircraft was operating as scheduled after a Qantas A380 suffered a major engine failure earlier in the day.

"All of our Emirates A380's are operating as scheduled," a spokesperson for the company said on Thursday.

The Qantas jet suffered trouble with one of its four engines shortly after it had left Singapore en route for Sydney, forcing it to turn back and make an emergency landing. None of the 459 people on board was injured.

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