Incident Reports: Trehörningen and Kroksjö, 1946

This document contains two separate accounts of aerial phenomena observed in Sweden during 1946. The first incident occurred in Trehörningen during the spring of 1946 at approximately 12:30. Fru Märta Karlsson alerted her husband, Karlsson, to something strange in the sky. Upon exiting their home, they observed a smoke trail stretching across the sky from southwest to northeast. The trail was narrow in the northeast and widened toward the southwest. It was light in color and dissipated after about five minutes. Karlsson reported seeing no object and hearing no sound, and he stated he had never seen such a phenomenon before or since. The second incident occurred in Kroksjö, Umeå parish, in late May or early June 1946 at approximately 14:00. The witness, a merchant named Per Gustav Hubert Högberg, was inside his shop when he heard a 'roar'. He went outside and observed a smoke trail in a straight line across the sky. He then spotted an object moving at very high speed from west to east. He estimated the object's altitude at 2,000 meters, describing it as round and elongated with no wings, and roughly the size of a standard airplane. The object left a dark smoke trail that remained visible for about half an hour. While the trail was straight over Kroksjö, it appeared twisted toward the south further to the east. Högberg called his wife to witness the object and the trail. Both incidents took place under clear, sunny weather conditions.