The bizarre sightings began at 11pm on Saturday and the spectacular show in the sky above Muir of Ord, Ross-shire ended at 1am.
Residents watched in awe as three bright orange dome-shaped objects hovered then flew at high speed in random spirals closer and closer to the village.
Last night leading expert Nick Pope said: "This could be one of the most significant UFO events in recent history.
"Sightings like this are hugely significant because they are very rare.
"Most UFOs are seen by single witnesses so it's very difficult to get any proof. For whole streets of people to see something is almost without precedent and this sounds like one of the most significant UFO events in recent history.
"It's also very unusual for a UFO to be seen for such a long time. Most are very brief.
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