I was in Malmö, Sweden for vacation and I was taking some photos. I didn't see or notice anything at that time (neither did other people around me) but a few days later when I was looking at my photos I noticed something in the sky in one of them. It was shiny, silverish and spherical, but not a perfect sphere. The bottom part seemed to be a little flatter than the rest of the object. As I looked at the photo more carefully and zoomed in I noticed 5 blurry, very small black-grey dots in the background, but I don't know if they are similar objects since they are too blurry and small. The night after I took the photo, on 5.8.2015, I saw multiple helicopters with red and green lights hovering in the sky at approximatley 10.30 pm-11.30 pm. I don't know if it has anything to do with the objects in my photo, but I didn't see or hear any helicopters the night before. I'm attaching the original photo, and a photo with the objects outlined. I would like to learn the object's approximate size, how high it is floating, and what it could possibly be.