Sighting Report — Älvkarleby, Sweden, 12 August 1946

This document is a formal report dated August 12, 1946, addressed to the Air Defense Department of the Defense Staff (Försvarsstabens luftförsvarsavdelning) by Lieutenant Colonel P. Goete of the Ing 1 S battalion. The report details two separate observations of an unidentified aerial phenomenon that occurred on June 12, 1946. The first witness, Verkmästare Fransson of the Älvkarleby power plant, reported seeing a rocket-like object at 20:44. The object was observed at an altitude of 100-200 meters, traveling horizontally at high speed, and emitting a bright light before extinguishing after a few seconds. The second witness, Sergeant Ryholm of Ing 1, reported a similar sighting at 20:45 near Laxön, Älvkarleby. Ryholm described the object as a light sphere (ljuskula) with a yellowish color, which appeared to pass over the area in a south-to-north direction at an altitude of 100-150 meters. He noted that the object seemed to extinguish 400-500 meters away and that a concentrated column of dark smoke was visible behind the light sphere. Both witnesses reported that no sound was associated with the phenomenon.