A UFO hovered in front of an Australian Navy destroyer for more than half an hour and did not appear on the warship's radar, an Australian Navy reservist claims.
The man, who didn't want to be named, came forward after visiting Katherine recently, where he heard about a spate of sightings of unexplained lights and objects in the sky.
The 39-year-old man said he was working on the guided missile destroyer HMAS Brisbane in 1992 as quartermaster gunner when an "illuminating, bright light" appeared in front of the boat.
"We were sailing in the Great Australia Bight when the light was suddenly in front of us, about 45 degrees, high in the sky.
"We watched it for about half an hour - but nothing was on the radar."
The Navy Reservist said the light then "quickly moved to south east and then south west and gave a bit of a jiggle", before it "shot up and disappeared".
"All this took place almost 20 years ago, but it is something I've never forgotten and never will.
"I've never seen anything like it since."