A really large black rectangular-shaped UFO was seen and photographed over Minnesota. The witness said there was a another plane flying above this object at one point. Check out the photo and testimony submitted to MUFON (case 80551):
I was heading north on 35w near Blaine MN at about 4:30 pm and noticed some odd object flying slightly ahead and to the right of my vehicle. At first I thought it was 2 large birds or maybe a bi-plane as I seen 2 objects that seemed to mimic the other object. Almost like 2 black rectangles flying horizontally with a slight distance between them. I then thought this might be a drone but it was getting darker about 4:40 ish and I could not see any lights on this thing. Then above, way above this black object I saw a plane with its lights on flying near cloud height and this object appeared to speed away in its direction very fast and I almost lost sight of it. At this point I knew this was not a drone and was not an aircraft by the lack of lights. The black rectangle stopped flying in the direction of the plane and seemed to resume its path it was taking. This object seemed to head in the same direction as the freeway, and not always staying in a straight line, either that or the freeway veered more and I was not staying in a straight line.
What was this black rectangle? Drone, passenger plane, blimp don't seem to fit the bill. Could it have been a large kite? Or a plane pulling a banner? What do you think? Did you see this as well?