The craft was a large triangle.Highly credible individuals. I did not believe in UFO's until this event. The object was a large triangle. We could not see the craft, only the lights. There was a bright white light on each corner of the craft. It had to be one unit as the lights stayed in the same formation as it moved from South to North, then, North to South across the night sky. I lost sight of it after about 5 minutes as it appeared to move to far into space to see. It came back into sight again momentarily and then was gone.