The New Zealand Air Force has released thousands of documents relating to UFO sightings over the last 50 years.
They include a well-known sighting from 1978 in which a cargo plane said it was being followed by strange lights - and was backed up by radar images from air traffic controllers. However, an Air Force report at the time explained it away as lights from Japanese squid boats reflecting off clouds.
"I hope the files will validate the reality of the sightings, and vindicate key witnesses who observed them, and faced 'trial by media," said one of the observers, former chief air traffic controller of Wellington International Airport, John Cordy.
Other reports in the 2,00-odd pages in the Unidentified Aerial Sightings (UAS) files include sketches and descriptions of spaceships ranging from silver disks to white cylinders and orange spheres. Aliens themselves have apparently been spotted wearing 'pharaoh masks', and there are even examples of 'alien writing'.
UFO sightings seem to be on the rise in New Zealand, with more than 150 reports this year compared with 65 in 2009 and only 30 in 2008. The New Zealand Defence Force says it hasn't got the time to investigate them.
The reports were released under a Freedom of Information request after two years of lobbying by UFOcus NZ - which says it believes that many documents are in fact missing, presumably suppressed.
UFO site UFO Eyes has the documents, here.