Ghost rockets over Sweden
Through the summer of 1946, thousands of Swedes reported fast, cigar-shaped 'ghost rockets' streaking low over lakes and forests, some crashing into them. The Swedish Defence Staff took it seriously enough to set up an investigating committee. A newly released U.S. War Department intelligence review shows that Swedish officials privately blamed Soviet tests of captured German V-weapons, then publicly shifted to a 'celestial' explanation. The review itself admits the evidence was inconclusive, and the objects were never recovered.
Evidence, in date order (3)
- 1946Swedish Defence Staffofficialset up an investigating committee into the reports war.gov: Intelligence review of 'ghost rocket' incidents, 1947
- 1946Swedish Defence Staff, series F 9 'Handlingar angående rymdprojektiler'documentfour digitised volumes of reports, summaries and committee minutes, 1946 (SE/KrA/0202/044:H/F 9) Riksarkivet F 9
- 1947U.S. military attaché in Stockholmofficialinput to the U.S. intelligence review war.gov: Intelligence review of 'ghost rocket' incidents, 1947
How plausible · Very high
Swedish Defence Staff records show radar, a stereo rangefinder and a bomber chase, with thousands of reports and an official committee; a U.S. review records officials privately doubting the public explanation.
- ●●Access Coast-defence radar, artillery rangefinder and air crews.
- ●●No gain sought Official military committee.
- ●●Character record Military officers and named archive chief.
- ●●Independent convergence Thousands of reports across Scandinavia.
- ●●Checkable details check out Digitised Swedish archive series F 9.
- ●●Fits the documented skeleton A released U.S. intelligence review covers it.
Plausibility weighs how well an account fits where secrecy hides the documents by design, so missing records never count against it. Strength measures what is documented. Assessed 2026-10-23.
On the record
- A January 1947 U.S. General Staff intelligence review of the ghost-rocket reports, with input from the U.S. military attaché in Stockholm.
- The review notes the Swedish Defence Staff changed its public explanation, which it read as a move to avoid a clash with Moscow.
- The Defence Staff's ghost-rocket file is series F 9, 'Handlingar angående rymdprojektiler', four volumes, digitised at Riksarkivet.
- The committee (chair Col. Bengt Jacobsson) met until 12 Dec 1946 without a conclusion; the government authorised photo-reconnaissance flights over the Baltic.