A recently disclosed set of US government records has brought renewed attention to an unexplained aerial sighting involving a dark, triangular object that witnesses described as completely silent. According to the documents, federal agents observed the unusual craft climbing above a ridgeline, remaining suspended in the air and then moving rapidly towards a nearby canyon before disappearing from sight.
The reported incident took place in June 2026 near a national security site in the western United States. Details emerged on October 23, when the Pentagon released another collection of records concerning unidentified anomalous phenomena, commonly known as UAPs. The latest release reportedly includes 28 PDF documents, among them an investigative memorandum from the All-domain Anomaly Resolution Office (AARO) and an account submitted to the FBI by federal agents.
According to the witness statements, the encounter began shortly after sunset. One agent, positioned at a separate observation point, alerted colleagues to an unusual object visible in the distance. Two other agents then observed the craft above a ridgeline, describing it as a large, matte-black triangle with an apparently smooth, non-reflective exterior.
The witnesses estimated that the object measured between nine and 15 feet across, with a length of approximately six to nine feet. They reported seeing no identifiable windows, rotors, exhaust outlets or conventional propulsion equipment.
An Unusual Object Moves Without Audible Noise
The agents reportedly watched the triangular object rise vertically to an estimated height of 200 to 300 feet above the ridgeline. Its ascent appeared controlled and steady, without the tilting or wobbling commonly associated with some conventional aircraft.
The investigative memorandum described the movement as taking place in “absolute acoustic silence.” According to the witnesses, no engine noise, rotor sounds or other identifiable acoustic signals accompanied the object’s ascent.
One of the agents also reportedly used a handheld infrared device to examine the craft. The resulting observation suggested that its surface was warmer than the surrounding environment, with a relatively uniform thermal appearance. The witnesses did not report seeing visible exhaust gases.
However, the released records do not establish the object’s precise temperature or independently confirm the reported thermal characteristics. Without additional technical measurements, the significance of these observations remains uncertain.
After climbing, the object reportedly remained stationary for around 20 seconds before accelerating towards a canyon. The witnesses described its apparent speed as comparable to that of a military fighter jet. Within seconds, it had disappeared from their view.
No verified speed measurements were provided, meaning the reported acceleration remains based on the agents’ visual observations.
Search Fails to Identify Physical Traces
Following the encounter, investigators examined the surrounding terrain for evidence that might explain what the witnesses had observed. A survey conducted the next morning reportedly found no wreckage, disturbed vegetation, ground damage or other obvious physical traces connected to the sighting.
The documents also contain a difference in the recorded duration of the incident. While the FBI statement reportedly describes a sighting lasting approximately three seconds, the AARO memorandum outlines a sequence involving a vertical ascent, an extended hover and rapid movement away from the observation area.
The discrepancy has not been publicly resolved, leaving questions about the precise timeline of events.
Illustrations included in the released material depict the triangular object’s reported shape and appearance. They should not, however, be interpreted as photographic proof of the craft’s existence or origin.
Officials Continue Examining Unidentified Sightings
The AARO memorandum reportedly identified similarities between the encounter and other accounts involving unusual objects observed in the western United States. These similarities were cited as reasons for further examination, although the documents do not establish a definitive explanation for the incident.
The release forms part of continuing efforts to make government records about unidentified aerial phenomena available for public scrutiny. Such disclosures allow researchers and interested observers to examine witness accounts and understand how authorities document unusual sightings.
Nevertheless, an unexplained aerial observation does not automatically demonstrate the presence of extraterrestrial technology. Unfamiliar aircraft, drones, observational limitations and other possibilities cannot be ruled out without sufficient evidence.
For now, the reported black triangular craft remains unidentified. The newly available documents provide a more detailed account of what the federal agents say they witnessed, but further independently verifiable evidence would be required to determine the object’s identity and capabilities.
You can watch the video below