Senator Russell Transcaucasia Sighting (1955) – PURSUE Files

Air Force and CIA records on a U.S. senator’s party seeing “unconventional aircraft” rise near Baku in October 1955, released in PURSUE Releases 01, 03 and 04

⚠ Note on validity: The CIA analyst who reviewed the debriefings concluded the reports, as described, did not indicate an “unconventional aircraft,” and cited the Robertson Panel’s finding that almost all sightings posed no threat. The leading explanation is Soviet jet aircraft taking off at night.

Russell sighting records
Date	October 4, 1955
Location	Near Baku, Azerbaijan SSR, USSR
Witnesses	Sen. Richard B. Russell Jr., Lt. Col. E. U. Hathaway, Ruben Efron, and a fourth person in the party
Agencies	U.S. Air Force intelligence; CIA
Released	Release 01 (May 8, 2026); Release 03 (June 12, 2026); Release 04 (July 10, 2026)
Files	4 (PDF)
Previously public?	Yes — redacted versions of the Air Force and CIA reports were released through FOIA in the 1980s and on CIA’s website; PURSUE adds less-redacted copies
Official releaseHistoricalLikely misidentification

On the evening of October 4, 1955, U.S. Senator Richard B. Russell Jr., chairman of the Senate Armed Services Committee, was traveling by train through the Soviet Transcaucasus with Lt. Col. E. U. Hathaway, Ruben Efron and others. They reported seeing a craft rise slowly near an airfield close to Baku, followed by a second, which then sped away. PURSUE released four records about it: the Air Force’s October 14, 1955 intelligence report (Release 01), a CIA information report describing “triangular aircraft with wing lights” launching at a steep angle (Release 03), and a CIA debriefing of the group and an analysis memo (Release 04).^[1]

The records

341_110677_Numerical_File,_5-2500

Open 341_110677_Numerical_File (PDF) on war.gov →

Air Intelligence Information Report, 14 October 1955, Report of eye witness account of the ascent and flight of a unconventional aircraft in the trans-Caucasus region on the USSR.
— Official PURSUE description

CIA-UAP-006, Sighting Of Unconventional Aircraft

Open CIA-UAP-006 (PDF) on war.gov →

This CIA information report from November 1955 describes a US national’s eyewitness account of triangular aircraft with wing lights launch at a steep angle from an airfield near Baku, Azerbaijan on October 4, 1955. A redacted version of this report has been available on CIA’s public website.
— Official PURSUE description

CIA-UAP-D020, Memorandum on Unconventional Aircraft Sightings, 1955

Open CIA-UAP-D020 (PDF) on war.gov →

This memorandum summarizes a Central Intelligence Agency (CIA) debriefing of a group of four individuals who reported observing a “flying saucer” or “unconventional aircraft” in 1955. The group, which included U.S. Senator Richard Russell, a U.S. military service member, and two U.S. Government officials, reported observing a luminescent “greenish-yellow” phenomenon, as seen from aboard a train while traveling within the Soviet Union, in present-day Azerbaijan, between Baku and Tiflis (Tbilisi, Georgia). The document concludes by stating that the observation can “probably be explained as steep climbing aircraft or missiles,” and that “the evidence does not appear sufficiently firm to warrant the conclusion that the Soviets have developed […] a radically new type of aircraft.” The document “CIA-UAP-D021” contains a contemporary analysis of the incident.
— Official PURSUE description

CIA-UAP-D021, Analysis of Unconventional Aircraft Sightings, 1955

Open CIA-UAP-D021 (PDF) on war.gov →

Sections 1 and 2 of this memorandum document a 1955 analysis of reports of “flying saucers” or “unconventional aircraft,” referencing the incident described in observer debriefings contained within CIA-UAP-D020. The memo summarizes the incident as consisting of two lights rising vertically, then passing above the observers. The memo contains caveating language that suggests the author concluded that the reports, as described, did not indicate the presence of an “unconventional aircraft.” Section 3 cites a previous finding by Dr. [Howard] Robertson (of the 1953 Robertson Panel) that “almost all the sightings […] represented no threat to the U.S.” Section 4 discusses the state of then-current research into “saucer-like aircraft” under Project “Y,” a contemporary joint U.S.-Canadian aerospace development program.
— Official PURSUE description

Analysis

What the CIA concluded. The CIA analysis memo summarizes the event as “two lights rising vertically, then passing above the observers,” and its wording indicates the author did not think the reports pointed to an “unconventional aircraft.” It quotes the 1953 Robertson Panel‘s finding that “almost all the sightings… represented no threat to the U.S.”^[1]

Known explanations. The most common explanation is that the men saw Soviet jet aircraft taking off at night from the airfield, possibly an experimental short-takeoff design, with the glow of afterburners making them look like rising discs. The “triangular aircraft with wing lights” in the CIA report fits ordinary aircraft lighting.

New or previously released? Previously released. Air Force and CIA documents on the sighting were released through FOIA in the 1980s, and redacted versions of the CIA reports are on CIA’s website. PURSUE publishes less-redacted copies.

Released files

PURSUE ID	Title	Type
341_110677_Numerical_File	_5-2500	PDF
CIA-UAP-006	Sighting Of Unconventional Aircraft	PDF
CIA-UAP-D020	Memorandum on Unconventional Aircraft Sightings, 1955	PDF
CIA-UAP-D021	Analysis of Unconventional Aircraft Sightings, 1955	PDF

References

^ U.S. Department of War (2026). PURSUE Release 01 (May 8, 2026), Release 03 (June 12, 2026), Release 04 (July 10, 2026): 341_110677_Numerical_File, CIA-UAP-006, CIA-UAP-D020, CIA-UAP-D021, with official descriptions. war.gov/ufo.

Source: U.S. Department of War, PURSUE (Presidential Unsealing and Reporting System for UAP Encounters), war.gov/ufo. Official records are U.S. government works in the public domain; summaries and analysis on this page are by UFO UAP Wiki.