A bizarre video showing a presence of colourful lights appearing in the sky and vanishing within seconds has left schoolkids in awe.
The unexplained incident left many witnesses thinking it could be a rare sighting of a UFO zooming past Earth.
Footage taken by a girl from North Point High School in Wentzville, Missouri, US, captures the moment when the sky flashes in bright pink.
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Kora Gregory zooms in on the camera and says: "What the f*** is that, man?"
The lights stay in a long, flat oval shape while other school kids look up and discuss the strange phenomenon.
A few seconds later, the light shoots off into distance and the children scream in shock.
Kora said: "I came to notice it when I heard a few people saying things like, 'what is that?' and 'do you see that?'
"A friend of mine I was with kept telling me it's probably just a laser – and at first I was thought maybe it was.
"But that quickly changed to 'oh my god, that's not normal' and I came to the conclusion that it was not a natural object."
Kora's mum uploaded the video to Facebook and left her viewers' jaws dropping.
"This is real. My son saw it and called me as soon as it happened," commented one dad.
"I highly doubt hundreds of kids are hallucinating."
The clip then found its way to a Missouri community on Reddit, and ultimately to UFO watchers worldwide.
Various explanations have been ventured, including high-altitude ice crystals, spotlights, Venus and – of course – aliens.
Kora is stumped.
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"As a possible explanation goes, I have none," she said.
"We are in Missouri and have no air bases around my area.
"A lot of people have said that it is rockets, but rockets are definitely not being launched in my area, especially not near the suburbs.
"And I honestly don't believe it could be a spotlight or a laser, or something like that. The movement and speed of it is not normal.
"I would possibly have more ideas if this UFO had some sort of sound that I heard, but this light in the sky was silent."
The teenager was even more awestruck to learn that her sister saw the same thing from home.
She said: "I doubted myself for a split second but after hearing that my sister saw the light in the sky from home go in the direction of my school, I couldn't not believe what I was seeing was real."
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