Singapore Airlines has grounded three of its Airbus A380 jets in Melbourne, Sydney and London due to mechanical issues, according to an Australian radio report on Nov. 10.

On Nov. 10, Fairfax Radio reported passengers had been transferred from a Singapore Airlines A380 aircraft in Melbourne to an alternative plane.

It also said oil had been found in the engine of an A380 aircraft in London.

Singapore Airlines confirmed later on Nov. 10 that it has pulled three of its Airbus A380 jumbos from its network due to engine issues.

An airline spokeswoman said the three aircraft were on the ground in Melbourne, Sydney and London.

"Based on further analysis of inspection findings, we are carrying out precautionary engine changes on three of our A380 aircraft," she told the Australian Associated Press (AAP) on Nov. 10.