Me and two friends were outside smoking a cigarette when I noticed and informed them of the phenomenon. There were a multitude of lights in the sky above the tree line that appeared to ascend and descend that flashed on and off in sequence. The ascension and descent of the lights made me certain that they were not any sort of artificial human light source, they were fairly far away and were still fairly wide, indicating that it may have been a single entity/craft. The lights on flashed on and off in sequence of various patterns. I as well as two friends witnessed this event.