I was in the driveway taking the dog out and something told me to look up in the western sky. I first thought they were birds, but then realized that I couldn't see birds up that high. There were 3 triangular shaped objects with circular patterns on each of the corners. They were flying in circular motions, it was then that I realized I was seeing something abnormal. I ran in the house to get my girlfriend so she could see. When we returned outside, 2 of the objects were gone and one was still there, hovering in the sky. About a minute later a jet, traveling at a very high rate of speed approached the object and the object just vanished. The jet then circled around the area for about 5 minutes afterwards and left the area.