Cluster/gathering of reddish-orange lights in the sky.I was with my father in a mall parking lot when I noticed a couple pointing at the sky. that's when I saw a cluster of reddish-orange lights in the sky, about six, they were flying around each other forming different shapes in the sky and then some would randomly start to fade and disappear in the night sky. While these lights were gathering other lights started to come fly over from another location and join this group of lights. They all flew over from the same location and joined in the same location. This occurred until all the lights had faded into the sky. We saw at least 20 lights, if not more. They were pretty high up in the sky and didn't resemble any kind of aircraft we've seen.