12 year old Girl and family sees Disc over high-power lines

I am reporting this for a friend. When she was 12 years old, she lived NE of Tupelo with her parents. On a sunday evening, she witnessed a disc-shaped craft hovering over high-power lines near their house. It was stationary above the lines for about an hour. It had a dome on the bottom, with soft lights running around the perimeter of the craft. She thought at the time these might have been windows, but in retrospect, could have been running lights.