2011·U.S. residential area (undisclosed location)
United States.U.S. · two people in a car see a huge black triangle
One night in June or July 2011, two of the three people in a car leaving a driveway watched a massive black triangle pass low overhead heading north, a car-sized white light at each corner, emitting a low, pulsing hum. One of them estimated its dimensions at roughly 200 by 100 feet and thought it might have been 800 feet up. The object disappeared behind the treeline in 10-15 seconds, leaving no contrail, before they could film it. The FBI took both witnesses' statements in April 2025, nearly fourteen years after the event.
Tier B · IndicativeWhat do they mean? →
Limited evidence: a single witness, testimony gathered years later, or an account without contemporary primary documentation.
What it was
61%natural or human cause
Most likely an ordinary cause that no one has identified
See the split across the six explanations
Natural or human cause
No known cause
Read the full reasoning
The absence of a published analysis is not evidence against an ordinary cause: in its 2024 report AARO stated that "all 174 cases have been finalized as resolved to prosaic objects including balloons, birds, UAS, satellites, and aircraft". The same report adds that "many other cases remain unresolved", so the figure is the rate among resolved cases, not among all cases.What happened
One night in June or July 2011, after dark, one witness was pulling out of his driveway around 8 or 9 PM. He was with another person, who was driving, and a third occupant sat in the front passenger seat. The vehicle was about fifty feet from the driveway, preparing to turn left at the intersection. As they reached the corner, the witness was looking out the window and saw three lights in the sky. He got out of the vehicle, and looking up, saw a massive black isosceles-triangle-shaped object flying north. The object had a car-sized white light at each of its three corners, slightly recessed inward, emitting a diffuse glow. It flew low, producing a low humming noise with a pulsing sound.
One of the occupants told him to get a video, but by the time he got his phone out, the object had already flown over the treeline behind the houses to the north and out of sight. They watched it for a total of about 10 to 15 seconds. According to the FD-302, it left no contrails, and the witness felt dumbfounded and awestruck. That witness was overwhelmed by its size and by how low it was. He thought it might have been 800 feet above the ground and, from the dimensions of their surroundings, estimated it at roughly 200 feet long by 100 feet wide. Though it looked to him more like an equilateral triangle at first glance, those calculated dimensions would suggest more of an isosceles shape. The object moved slowly and steadily, and both witnesses agreed on the pulsing hum. One of them further recalled something grayish or graphite-colored in the middle of the triangle, between the three corner lights.
Neither witness had a clear memory of the object's thickness or other details of its vertical profile: they explained that, being initially underneath the triangle, they didn't get a good view of its side, and that the moment they likely would have gotten a better view of its rear profile coincided exactly with their failed attempt to pull out a phone to record it. One witness believed a couple of people in the neighborhood had also seen it, and said he would try to find out whether they, and the other neighbors who saw it, would be willing to give a written statement or speak with the FBI. The two witnesses were interviewed together by FBI agents on April 11, 2025, nearly fourteen years after the sighting, and the interview was documented in an FD-302, the FBI's form for such interviews. It was conducted by a supervisory special agent, a special agent and a task force officer; one more person attended, whose title is blacked out. According to the form, one witness served six and a half years in the U.S. Army and the other 24; the rest of what it says about their careers is blacked out.
Why it matters
The FD-302 came nearly fourteen years after the sighting, so everything it says is memory: the witnesses recorded nothing, there is no photograph, and the form is printed with a note that it contains neither recommendations nor conclusions of the FBI. The two witnesses were interviewed together and the document does not show who said what, so it is not possible to know how much of each account is independent of the other. The vehicle's third occupant does not appear as a declarant.
The measurements are one witness's estimates: the altitude, about 800 feet, which he thought possible, and the size, about 200 by 100 feet, which he calculated from the dimensions of the surroundings; neither was measured. The FD-302 records that it left no contrail; by this case's own reasoning, that absence says little, because contrails form at high altitude and would barely be visible at night. One of the witnesses believed a couple of neighbors had also seen it; the file does not confirm any.
Documents and sources
Primary documents
FBI-UAP-D028 — FD-302, joint statement from two witnesses (April 2025)
Joint statement of two witnesses on an FBI FD-302 form, three pages. It records the April 11, 2025 interview about a sighting in June or July 2011; names are blacked out.
Read more
It describes the black triangle, the corner lights, the pulsing hum, the altitude and size estimates, the failed attempt to record it and the possibility of other neighborhood witnesses. The form is printed with a note that it contains neither recommendations nor conclusions of the FBI.
Federal Bureau of Investigation (PURSUE Release 05) · Public domain · US Government work · open original
Documented evidence
- Two witnesses in a vehicle with a third occupant saw a massive black triangle flying low and north, one night in June or July 2011; one of them estimated about 200 by 100 feet and thought it might have been 800 feet up.
- A car-sized white light at each corner, recessed inward from the corners, with a diffuse glow; one witness also recalled something grayish in the center.
- Low, pulsing hum; the FD-302 records that it left no contrail.
- It disappeared behind the treeline in 10 to 15 seconds; the witnesses failed to record it.
- Both witnesses were interviewed together by the FBI on April 11, 2025, nearly 14 years later.
- One witness believed a couple of neighbors had also seen it; the file does not confirm this.
Sources
- war.gov/UFO — FBI-UAP-D028, joint FD-302 from two witnesses (PURSUE Release 05) — Document embedded in this case's viewer.
- AARO — Fiscal Year 2024 Consolidated Annual Report on UAP (Nov 14, 2024)
Context (not images of the event)

FBI-UAP-D029 — digital rendering of the triangle
Digital illustration published with the FD-302: at night, a man seen from behind looks up beside a car, and above him is a dark triangle with a white light at each corner. It is a rendering, not a photograph.
Federal Bureau of Investigation (PURSUE Release 05) · Public domain · US Government work · open original
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