I've seen a "UFO". I has with my dad hunting and it was very early in the morning. We got to our spot very early so I was looking at the stars. Then I noticed one moving across the sky. When it was over head it did a dead stop and accelerated in the opposite direction faster than I've ever seen. Then coming from behind it has another one moving faster than it and then was moving parallel to the first one. They both then got behind the trees. That all happens within 30 seconds. They came back soon after and were chasing each other over head. Me and my dad watched both of them until the sun came up an hour later. I don't know what they were. We were far out in the woods and could not hear any jets engines. They also were too agile and fast than any fighter jets I've see.