Date for event is between 2009 - 2011. Time is aprox between 20:00-21:00 (Stockholm time).Went for a walk along the "Södra långgatan" in Målilla, when I suddenly at the intersection with "Ljunggatan" saw something black triangular about 20 meters long with three green lights on the short side "stern" (Figure 1), glide silently by, just a little bit of birch trees nearby, over the road, just above me and the rental house on the other side. The speed was quite slow, first thought it was an airplane or glider, but it was not consistent with the shape. Came from the north and continued south. The entire sighting lasted about 40 seconds. The weather was calm.