Case No. 106·United States
Developing2023·Military test site — classified location (U.S.)
United States.LiDAR Test Site — Ovaloid Object (PURSUE, 2023)
September 2023, a U.S. military test site with airspace closed for LiDAR trials: a contractor with 15 years on military installations —who personally closed the airspace that day—, a drone pilot and other witnesses observe a bronze metallic ovaloid object (~40–60 m) that materializes from a bright light and vanishes instantly. FBI-rendered graphic and composite sketch; location officially redacted. Disclosed in the official PURSUE release (war.gov/ufo, May 2026).
Year
2023
Tier
A
Probability
63%
Category
Incident
Institutional evidence: multiple verifiable witnesses or official documentation. Three independent axes: the «tier» measures the strength of the evidence; the «probability» estimates how genuinely unexplained the case is —a natural phenomenon can remain unexplained, so it does not equal «non-prosaic»—; and the partition of explanations (below) says what it most plausibly was. So a well-documented case can have a possible hoax as its most plausible cause, and a Tier B is not, for that reason, a hoax.
Primary documents · viewer
FBI 302 — test-site sighting, September 2023 (Serial 004, redacted)
FBI (PURSUE Release 01) · Dominio público · US Government work · open original
FBI 302 — test-site sighting, September 2023 (Serial 4, redacted): "metallic/gray" object
FBI (PURSUE Release 01) · Dominio público · US Government work · open original
FBI 302 — test-site sighting, September 2023 (Serial 5, redacted): "bright light over the horizon" object
FBI (PURSUE Release 01) · Dominio público · US Government work · open original
FBI composite sketch (official) — site photo with FBI Lab overlay (Apr 30, 2024)
FBI Laboratory (PURSUE Release 01) · Dominio público · US Government work · open original
Part 01
The night in question
In September 2023, a team was working with LiDAR (Light Detection and Ranging) technology inside a U.S. military test site whose airspace had been expressly closed for the trials. The primary witness was not a casual observer: a contractor with fifteen years of experience working on military installations, who on that particular day was the person responsible for managing and closing the area's airspace. In other words, the person professionally responsible for knowing what should and should not be flying there was the one who reported the anomaly. She reported seeing, to the southwest, a cigar- or ovaloid-shaped object accompanied by an extremely bright light, roughly 500 to 3,000 feet above the nearest treeline. The observation, by her account, lasted only five to ten seconds before the object vanished.
From the testimony, the FBI lab produced a rendered graphic describing the object as a bronze-colored metallic ellipsoid between 130 and 195 feet long (approximately 40 to 60 meters), which is said to have materialized out of a bright light in the sky and disappeared instantaneously. The sighting did not rest on a single witness: it was corroborated by a drone pilot operating near the same facility and by other witnesses —whose names are redacted in the documents— who were driving toward the site that day. Among the released materials are both the composite sketch of the object above the treeline and the FBI technical graphic.
The case was disclosed in the first tranche (Release 1) of the PURSUE system (Presidential Unsealing and Reporting System for UAP Encounters), published on the war.gov/ufo portal on May 8, 2026 as part of a batch of nearly 200 declassified UAP files. The exact location —state and range name— remains officially redacted: it is identified only as a military test site with closed airspace. That context is analytically relevant in both directions, and worth keeping in view: a test range with restricted airspace rules out from the start the casual civilian traffic —light aircraft, balloons, recreational drones— that explains so many reports; but it is, for exactly the same reason, where unacknowledged classified platforms are tested, so the very datum that raises the sighting's credibility also offers its strongest prosaic explanation.
Part 02
Why this case moved the needle
It is one of the first individual sightings —not policy documents or administrative timelines— released through the official PURSUE channel, and that gives it a provenance value few contemporary reports have: it arrives not through a leaker or a book but through a government portal, with an FBI sketch and graphic attached. The witness's credibility is the second pillar: fifteen years on military installations and, that day, the person responsible for closing the airspace. It is hard to imagine a profile better placed to tell an authorized drone or light aircraft from something that should not be there. The third pillar is the independent corroboration —the drone pilot and the drivers—, which moves the case out of the lone-witness category, the one most vulnerable to perceptual illusion or fabrication.
That said, calibration requires naming the limits frankly. There is no hard sensor data: despite this being a site with active LiDAR technology and a drone pilot operating, what was released is a sketch and a rendering from descriptions, not an instrumental image of the object; a five-to-ten-second event leaves no room to fix anything. The most striking features —'materialization' from a light and instantaneous disappearance— are precisely the ones the psychology of perception explains most readily (the appearance and loss of a bright point against the light). And the redacted location prevents any cross-check against flight or test records. The net result is a case strong in witness credibility and provenance but weak in physical evidence: Tier A, not S, precisely because of that asymmetry between how well the account is attested and how little of the object can be fixed.
Part 03
What's left on paper

FBI Laboratory composite sketch (dated Apr 30, 2024) of the bronze ovaloid object above the treeline, produced from the witnesses' descriptions. It is the incident's primary visual document, declassified in the first PURSUE release and rehosted here from the public archive.
FBI Laboratory · Department of War (PURSUE Release 01) · Dominio público · US Government work
Documented evidence
- High-credibility witness: contractor with 15 years on U.S. military installations, responsible for closing the site's airspace that day.
- Independent multi-witness corroboration: a drone pilot operating near the facility + additional (redacted) witnesses driving toward the site.
- FBI-lab rendered graphic: bronze metallic ellipsoid object, 130–195 feet (~40–60 m).
- Composite sketch of the object above the treeline, with a bright light at one end.
- Airspace closed for trials (rules out casual civilian traffic); disclosed in the official PURSUE release, war.gov/ufo, Release 1 (May 8, 2026).
Sources
- PURSUE — Presidential Unsealing and Reporting System for UAP Encounters (portal oficial)
- DefenseScoop — 'Data alone is not disclosure': UAP research community reacts to Trump's first PURSUE file drop (14 may 2026)
- Live Science — US government declassifies nearly 200 UAP files, including strange sightings (8 may 2026)
- Flying Magazine — Unpacking the Pentagon's Latest UAP Release (2026)
Patterns it exhibits (2)
Location
Military test site — classified location (U.S.) · 39.50°, -98.35°
Distribution of explanations
This case is classified among the model's hypotheses: the bar splits 100% by how much each explanation weighs (the uncertainty is spread across the hypotheses the case supports). Summed across the corpus they produce the comparable partition. It is a different question from the Probability above: that one estimates how likely the case is a genuinely unexplained phenomenon; this one splits which the explanation would be.
Modal hypothesis: Classified human technology 41% · sums to 100%
Structured analytical judgment, not a calibrated frequency. Forced classification: the mass the evidence cannot assign is spread across the hypotheses the case does support.
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