Putrajaya's Airbus Corporate Jet 319 bearing the registration number 9M-NAA can no longer be tracked on flightaware.com.

The website said the data was not available for tracking as "per request from the owner/operator".

The request to remove public access to the data came shortly after Malaysiakini highlighted 9M-NAA's trip across Australia, which coincided with Prime Minister Najib Abdul Razak's family vacation Down Under...