Yesterday, Express.co.uk reported on the increasing number of reports of triangle-shaped UFOs being made to investigators.
Now details have emerged of a strange sighting said to involve four triangle UFOs, followed by several "star-like objects".
The Mutual UFO Network (MUFON) is investigating the case.
The unnamed witness from Fairless Hills, Bucks County, Pennsylvania, in the US said the triangle-shaped UFOs moved silently and were just 20 feet over neighbouring homes.
Oddly, they said they were followed by "20 to 30 star-like objects".
In a report to US-based MUFON, which holds a global database of UFO sightings, the witness said: “At approximately 8.20pm we turned and began walking up a street with a slight incline, and my youngest child stopped to catch a Pokémon and had lagged behind.
"I noticed he was no longer with us and I turned around to call to him to catch up, and right behind him were two huge, black, triangular craft, larger than the houses they were above, flying slowly and approximately 20 feet above the one story houses across the street, and approximately 20 feet away.
“The second craft was flying at the same height as the first craft, immediately behind it.To read more, click here.