Singapore Airlines grounds three Jumbo Airbus

The airline says it will carry out "precautionary changes" on the engines of three A380 jets in its fleet.

It comes after tests revealed oil leaks in the engines of the planes, one of which was flown back to Singapore from the UK this morning.

The other planes are in Melbourne and Sydney in Australia.

Qantas grounded its fleet of A380s after one of the aircraft's Rolls-Royce engines burst during a flight from Singapore to Sydney last Thursday.

The plane, carrying 466 people, made a safe emergency landing in Singapore.

Qantas CEO Alan Joyce said on Monday that tests had uncovered oil leaks in the turbine area of three engines on three different A380s.

All six of the Australian airline's A380s remain grounded.

The Trent 900 engines that are used in the A380s are operated by Qantas, Singapore Airlines and Germany's Lufthansa.

Singapore Airlines initially grounded its entire fleet of 11 A380s following last Thursday's Qantas explosion.

They returned to service on Friday after checks but three were pulled again today following new analysis.

Singapore's eight other A380s, also flying with Trent 900 engines, remain in service.