At 03.04.2015y I was smoking cigarette in window, 15km from Bydgoszcz when I saw small, white light flying in straight line from South to East with constant speed. At the beginning I was thinking it's just a plane. When it reach point on East it starts to hover and getting brighter, lighter from little white dot to some kind of lantern, it was bigger about 10-times, then gets darker like before and move back the same path. When this object show again I run for my brother to watch it with me. It was doing same path and hover with light again. Before it flashes, they spawn blue and red light just behind this biggest white one. From this I was able to estimate the size of it... It was really big, because plane are much smaller and have their light closer to each other. Next day I question friend of mine, which live near that place... When I was talking about it, he complete my sentence because he saw what we saw and more. He was talking about enormous size of that and teleporting for 100-200m after flashes, it did it 4 times, when 4th was on bigger distance, about 2-5km in opposite direction which it was travelling. He compare it to street light but it was 4 times bigger and higher that this, no sound was hearing there only barking dogs, many people saw this from street. This event take time from 20:40 CEST to 21:00 CEST.