From a very credible witness comes a report of a round-edged triangle UFO seen over North Dakota on April 11, 2012.
There were actually two witnesses; a father and his daughter. They were doing something they often did; watching the stars from their backyard when the father noticed something unusual in the sky; an object with three lights on the corners of a triangle.
Check out their account at Triangle UFO Seen over Casselton, North Dakota, and do comment as you wish.

Comments
I live near there, I will be keeping my eyes on the sky more now!
“I live near there, I will be keeping my eyes on the sky more now!”
Suuuurrrrrrre you doooooooo!
I really don’t think that triangular UFO’s are secret military craft. Too many are seen in too many different places and as with most UFO sightings I wish there was a definitive answer.
Here on earth we don’t have just one type of aircraft or ground transportation. Why would life on other planets have only one type of transportation? One theory is that our DNA is adapting and changing us into a superhuman life form. We will become smarter mentally and physically we will change form. These life forms that have been mentioned in other reports may be life forms that are hundreds of thousands of years ahead of us genetically. Very interesting report! Some organizations unknown to the population have information about the different UFO’s that have been spotted.
It is a TR3B, Top Secret aircraft. Nuclear powered with additional fuel support for center engine. Just google it