At approximately 11:00 am on Wednesday, 6 April 1966, students and a teacher from Westall High School, now Westall Secondary College, reported seeing a flying object, described as a grey (or silvery-green) saucer-shaped craft with a slight purple hue and about twice the size of a [[family car]]. According to the students, the object was descending, overflew the high school, and disappeared behind a stand of trees. Approximately 20 minutes later the object reportedly reappeared, climbed at speed and departed towards the north-west. Some accounts describe the object as being pursued by five unidentified aircraft.<ref name=Dandenong>{{cite news |title= Flying Saucer Mystery, School Silent | issue=16 April 1966 p. 1 and 21 April 1966 p. 1-2 |location=The Dandenong Journal |publisher=[[Star News Group]]}} republished by [https://www.news.com.au/technology/science/space/audio-reveals-creepy-details-of-australian-ufo-mystery/news-story/471c724255b0388ee4e930a4d35028e7 www.news.com.au], [https://www.heraldsun.com.au/leader/inner-south/westall-ufo-sighting-witnesses-to-speak-about-the-1966-alien-encounter-at-clayton-south/news-story/ba54dbec1130e3df8715c728e65bc028 www.heraldsun.com.au] </ref><ref name="Herald Sun 2010">{{cite news |first=Ally |last=Foster |date=8 August 2018 |title=Audio reveals creepy details of Australian UFO mystery RARE audio of a physicist discussing one of Australia's greatest unsolved UFO cases could shed light on the baffling events of the 1966 incident |work=[[Herald Sun]] |publisher=[[The Herald and Weekly Times]] ([[News Corp Australia]]/[[News Corp]]) |publication-place=[[Melbourne]], [[Victoria (Australia)|Victoria]], [[Australia]] |editor1-first=Sam |editor1-last=Weir |url=https://www.news.com.au/technology/science/space/audio-reveals-creepy-details-of-australian-ufo-mystery/news-story/471c724255b0388ee4e930a4d35028e7 |access-date=2 July 2021 |quote="In 1966 over 300 children and staff from a Melbourne school reportedly witnessed multiple UFOs silently flying through the sky before landing in a nearby field. It is the largest mass UFO sighting in Australia yet hardly anything was reported on it at the time..." |archive-url=https://archive.today/20180807165829/https://www.news.com.au/technology/science/space/audio-reveals-creepy-details-of-australian-ufo-mystery/news-story/471c724255b0388ee4e930a4d35028e7 |archive-date=7 August 2018}}</ref>
