It was September 1997 in Minden, GermanyI left the house where I had lived, it was in the evening at 20:30 and it was dark and it was still. I walked to the trees and stood alone. I looked up to the trees and between the two trees i saw the strange yellow lights. I stood far from the strange lights 20 meters. I looked one minute at the strange yellow lights, then it goes out and five seconds later it turns red and goes out.I heard no noise. It was mysterious.