The Royal Australian Air Force chief says Australia has no plans to follow the Pentagon by formally investigating UFOs, insisting his pilots have not reported any recent sightings of unexplained objects in the sky.

At a Senate estimates hearing, RAAF Chief Air Marshal Mel Hupfeld was quizzed about a declassified US report into the topic released in June by the US Office of the Director of National Intelligence.

The report, submitted to US Congress, found defence and intelligence analysts lacked sufficient data to determine the nature of mysterious flying objects observed by military pilots, including whether they are advanced earthly technologies, atmospherics or of an extra-terrestrial nature.

Under questioning from Greens senator Peter Whish-Wilson, the RAAF chief confirmed he was not "formally aware" of the report's findings but had noticed it in the media.

Air Marshal Hupfeld told the committee he had not seen any reports of "unidentified aerial phenomena" — or UAPs — in Australian airspace.

What a brazen liar. To read more, click here.