SYDNEY - An investigation is underway after a Qantas plane from Sydney to Western Australia's Perth experienced an engine failure, local media reported on Monday.

According to the Australian Broadcasting Corporation (ABC) reports, the engine of the A-330, which left Sydney with 254 passengers, was reduced to idle power at 3,000 feet over Perth.

The plane landed safely at Perth Airport on late Sunday night and was towed to the gate.

Qantas says engineers are trying to work out what went wrong with the engine.