June 2008 in the center of Kungshamn - me and my friends and many other people saw two "fireballs" flying around eachother in high and low speed, blinking away and came somewhere else. They were flying low and they were totally silent. The time was about 6 pm so it was not dark. I found this video on Youtube and it was uploaded approx three weeks after we saw it in Kungshamn. They filmed the clip in Kungälv not far away by air.