Hovering lightsWitnessed yellow and white lights flashing low on the horizon. The object appeared to be hovering in a specific area in the distance. The lights began moving slowly back and forth; also vertically. The lights flashed much faster than those of any aircraft I've ever seen. We stopped observing after the lights disappeared straight up into the low cloud cover. We came back to find the object had already re-appeared and was still hovering, although it seemed another pair of flashing lights joined the previous craft.We observed them hovering for another twenty minutes until they just disappeared.Not a helicopter. Plane. Tower. etc...