Within Uruguay Weird
What Do Uruguay's UFO Files Really Show?
Uruguay's official UFO commission makes the country's aerial mysteries unusually well documented without making them automatically extraterrestrial.
On this page
- Why CRIDOVNI was created
- How official UFO reports are checked
- The unresolved residue and its limits
Page outline Jump by section
Introduction
Uruguay is unusual among countries with a reputation for UFO sightings because it has maintained an official military body dedicated to receiving and investigating reports for more than four decades. That fact is often presented online as proof that governments know UFOs are extraterrestrial. The evidence points to a more interesting conclusion. Uruguay’s Air Force files demonstrate that unusual aerial reports are considered worth documenting and investigating for aviation safety and airspace awareness. They also show that, after careful investigation, most reports receive conventional explanations, while a small minority remain unexplained because the available evidence is insufficient to identify them with confidencenot because they have been proved to involve alien spacecraft.[Seguritecnia]segurilatam.comSeguritecnia Cridovni se pronuncia sobre los derribos de Estados Unidos a ovnisSeguritecniaCridovni se pronuncia sobre los derribos de Estados Unidos a ovnisMarch 9, 2023…
For readers interested in Uruguay’s Fortean history, the significance of these files lies less in spectacular claims than in the existence of a long-running official archive. Rather than relying solely on folklore or sensational headlines, Uruguay offers a rare opportunity to examine how a military organisation handles reports of strange things seen in its skies.
Why CRIDOVNI was created
Uruguay’s official UFO investigations are carried out by CRIDOVNI (the Commission for the Reception and Investigation of Reports of Unidentified Flying Objects), established by the Uruguayan Air Force on 7 August 1979. The commission was created during a period when increasing numbers of reports prompted concern that unidentified aerial objects might represent hazards to aviation or national airspace. Its purpose was therefore practical rather than explicitly paranormal.[Revista UFO]ufo.com.brRevista UFOA histria da Ufologia Oficial no Uruguai Revista UFORevista UFOA histria da Ufologia Oficial no Uruguai Revista UFO
Unlike many civilian UFO organisations, CRIDOVNI operates within the framework of the Air Force’s responsibility for monitoring Uruguayan airspace. That gives investigators access to information unavailable to ordinary enthusiasts, including:
- civil and military flight records;
- radar information where available;
- meteorological observations;
- astronomical data;
- satellite and space-debris tracking;
- witness interviews conducted using standard procedures.
The commission has also collaborated with civilian specialists, including astronomers, meteorologists and experienced civilian investigators, recognising that unusual aerial reports often require expertise from several disciplines.[Revista UFO]ufo.com.brRevista UFOA histria da Ufologia Oficial no Uruguai Revista UFORevista UFOA histria da Ufologia Oficial no Uruguai Revista UFO
How official UFO reports are checked
One reason Uruguay’s files attract attention is that CRIDOVNI has publicly described much of its investigative process.
Rather than asking whether a witness has seen an alien craft, investigators begin with more ordinary questions. They assess whether the report could involve deliberate fraud, misunderstanding by witnesses, conventional aircraft, atmospheric or astronomical phenomena, optical illusions or psychological factors. Only after these possibilities have been considered does a case remain classified as unidentified.[Revista UFO]ufo.com.brRevista UFOA histria da Ufologia Oficial no Uruguai Revista UFORevista UFOA histria da Ufologia Oficial no Uruguai Revista UFO
The investigation may include:
- interviewing all available witnesses separately;
- comparing accounts with known aircraft movements;
- checking weather conditions and atmospheric phenomena;
- identifying planets, bright stars, satellites or meteor activity;
- reviewing photographs or video for signs of misidentification or artefacts;
- examining any claimed physical traces where appropriate.
This approach resembles accident investigation more than paranormal research. The goal is to identify the observed phenomenon whenever possible, not to defend a particular explanation.
What the files actually show
One of the most frequently misunderstood aspects of Uruguay’s UFO archive is its statistical record.
According to figures repeatedly published by CRIDOVNI officials, the commission has investigated well over 1,500and by some accounts more than 2,000reports since its creation. A substantial proportion could not be analysed because the available information was too incomplete. Of the cases that could be properly investigated, the overwhelming majority were eventually attributed to conventional causes such as aircraft, astronomical objects, meteorological events, birds, insects close to camera lenses, or photographic artefacts. Only a small residual percentage remained officially categorised as “non-conventional” or unresolved.[Revista UFO]ufo.com.brRevista UFOA histria da Ufologia Oficial no Uruguai Revista UFORevista UFOA histria da Ufologia Oficial no Uruguai Revista UFO
That statistical pattern is important.
An unresolved case is simply one for which investigators cannot confidently identify the object using the available evidence. It is not equivalent to a confirmed extraterrestrial vehicle.
This distinction is sometimes lost in popular retellings. A military file labelled “unidentified” means precisely that: investigators could not identify it. It does not establish what the object actually was.
The unresolved residue and its limits
The small proportion of unresolved reports has naturally attracted the greatest attention from UFO researchers.
CRIDOVNI officials have described recurring features reported in some difficult cases, including unusual manoeuvres, rapid acceleration, changing colours and occasional radar detections. Some investigations have also recorded claims of ground traces or electromagnetic effects. These observations are presented as witness reports or investigative findings rather than proof of extraordinary technology.[Revista UFO]ufo.com.brRevista UFOA histria da Ufologia Oficial no Uruguai Revista UFORevista UFOA histria da Ufologia Oficial no Uruguai Revista UFO
Several limitations prevent stronger conclusions.
First, many unusual aerial events are observed only briefly and under poor viewing conditions. Night-time observations make judging distance, size and speed extremely difficult.
Second, not every report contains multiple independent witnesses or supporting radar information. A dramatic testimony may still lack enough evidence for firm identification.
Third, even apparently unusual radar returns or physical traces can have more than one possible explanation. Without repeatable measurements or recoverable material, investigators cannot conclusively determine what produced them.
For these reasons, CRIDOVNI has consistently avoided declaring that unresolved cases prove extraterrestrial visitation. Instead, it treats them as open investigations that may eventually receive conventional explanations if new evidence becomes available.[Revista UFO]ufo.com.brRevista UFOA histria da Ufologia Oficial no Uruguai Revista UFORevista UFOA histria da Ufologia Oficial no Uruguai Revista UFO
Transparency without certainty
One feature that distinguishes Uruguay from many countries is its comparatively open discussion of official UFO investigations.
Senior CRIDOVNI representatives have regularly given interviews explaining the commission’s procedures, statistics and general findings. Public access requests have also demonstrated that the commission remains an active point of contact for reports, even if not every document is immediately released.[Gub.uy]gub.uyJuly 10, 2020…
This transparency has sometimes been misunderstood as confirmation that governments possess secret knowledge about alien visitors. In reality, openness mainly demonstrates that Uruguay considers unidentified aerial reports worthy of systematic documentation rather than ridicule.
That approach has practical value regardless of whether any report ultimately proves extraordinary. Aviation authorities benefit from investigating anything that pilots or air-traffic personnel cannot immediately identify.
So what do Uruguay’s UFO files really prove?
The strongest conclusions supported by the evidence are more modestand arguably more interestingthan many sensational headlines suggest.
Uruguay’s Air Force files show that:
- governments can investigate UFO reports seriously without assuming paranormal explanations;
- most reports eventually receive ordinary explanations after systematic analysis;
- a small number of cases remain unidentified because available evidence is incomplete or inconclusive;
- maintaining official archives creates a valuable historical record of unusual aerial observations.
They do not prove that extraterrestrial spacecraft have visited Uruguay, nor do they demonstrate a government cover-up or secret confirmation of alien technology.
For students of Forteana, the enduring fascination of Uruguay’s archive lies precisely in this balance. The files preserve genuine mysteries, but they also document the patient, often unspectacular work of trying to separate misidentification, folklore, atmospheric phenomena and the occasional stubbornly unexplained report. That combination of curiosity and caution is what makes Uruguay’s official UFO record one of the most distinctive in Latin America.
Amazon book picks
Further Reading
Books and field guides related to What Do Uruguay's UFO Files Really Show?. Use these as the next step if you want deeper reading beyond the article.
The Report on Unidentified Flying Objects
Provides historical comparison with Uruguay's Air Force investigations.
Endnotes
1.
Source: gub.uy
Link:https://www.gub.uy/unidad-acceso-informacion-publica/institucional/normativa/resolucion-n-16020-sobre-entrega-informacion-informacion-reservada
Source snippet
July 10, 2020...
Published: July 10, 2020
2.
Source: gub.uy
Title: www.gub.uy Recepcin de denuncias, testimonios o duda de orgenes | Trmites
Link:https://www.gub.uy/tramites/recepcion-denuncias-testimonios-duda-origenes
Source snippet
de denuncias, testimonios o duda de orgenes | TrmitesJuly 11, 2025 * Recepcin de Denuncias, Testimonios o Duda d...
Published: July 11, 2025
3.
Source: gub.uy
Link:https://www.gub.uy/secretaria-derechos-humanos/tramites-y-servicios/servicios/comision-honoraria-contra-racismo-xenofobia-toda-otra-forma
Source snippet
Honoraria Contra el Racismo, la Xenofobia y Toda Otra Forma de Discriminacin (CHRXD) | Secretara de Derechos Humanos...
4.
Source: gub.uy
Link:https://www.gub.uy/unidad-acceso-informacion-publica/comunicacion/publicaciones/manual-para-solicitantes-informacion-publica/manual-para-solicitantes-1
Source snippet
de las solicitudes | Unidad de Acceso a la Informacin Pblica* Inicio * Comunicacin * Publicaciones * Manual Para Solicitantes Informac...
5.
Source: segurilatam.com
Title: Seguritecnia Cridovni se pronuncia sobre los derribos de Estados Unidos a ovnis
Link:https://www.segurilatam.com/entrevistas/coronel-ariel-sanchez-rios-cridovni-la-reciente-respuesta-de-estados-unidos-contra-ovnis-se-ajusta-a-su-doctrina-de-defensa_20230309.html
Source snippet
SeguritecniaCridovni se pronuncia sobre los derribos de Estados Unidos a ovnisMarch 9, 2023...
Published: March 9, 2023
6.
Source: ufo.com.br
Title: Revista UFOA histria da Ufologia Oficial no Uruguai Revista UFO
Link:https://ufo.com.br/a-historia-da-ufologia-oficial-no-uruguai/
7.
Source: ufo.com.br
Title: A Ufologia no ter futuro se no se aproximar do mtodo cientfico
Link:https://ufo.com.br/a-ufologia-nao-tera-futuro-se-nao-se-aproximar-do-metodo-cientifico/
Source snippet
Revista UFONovember 16, 2013 As duas mais antigas entidades so justamente as que tm o maior volume de atividade: a uruguaia Comisso...
Published: November 16, 2013
8.
Source: ufo.com.br
Title: O Uruguai um dos poucos pases que admite pesquisar os UFOs oficialmente
Link:https://ufo.com.br/o-uruguai-e-um-dos-poucos-paises-que-admite-pesquisar-os-ufos-oficialmente/
Source snippet
Revista UFOMarch 7, 2012 O URUGUAI UM DOS POUCOS PASES QUE ADMITE PESQUISAR OS UFOS OFICIALMENTE O exemplo uruguaio deve ser levado...
Published: March 7, 2012
9.
Source: ufo.com.br
Title: No Uruguai, militares pesquisam UFOs h mais de trs dcadas, e sem segredos
Link:https://ufo.com.br/no-uruguai-militares-pesquisam-ufos-ha-mais-de-tres-decadas-e-sem-segredos/
Source snippet
Revista UFOJanuary 4, 2012 NO URUGUAI, MILITARES PESQUISAM UFOS H MAIS DE TRS DCADAS, E SEM SEGREDOS Um dos menores pases do contin...
Published: January 4, 2012
10.
Source: ufo.com.br
Title: Os verdadeiros arquivos X esto no Uruguai
Link:https://ufo.com.br/os-verdadeiros-arquivos-x-estao-no-uruguai/
Source snippet
Revista UFONovember 23, 2010 OS VERDADEIROS ARQUIVOS X ESTO NO URUGUAI Coronel Ariel Sanchez e eu, durante visita s instalaes do CR...
Published: November 23, 2010
11.
Source: ufo.com.br
Title: a j gevaerd permanece no uruguai e entrevista oficiais do cridovni
Link:https://ufo.com.br/a-j-gevaerd-permanece-no-uruguai-e-entrevista-oficiais-do-cridovni/
Source snippet
J. Gevaerd permanece no Uruguai e entrevista oficiais do Cridovni - Revista UFONovember 15, 2010 A. J. GEVAERD PERMANECE NO URUGUAI E E...
Published: November 15, 2010
12.
Source: ufo.com.br
Title: Uruguai e seus arquivos secretos: entrevista com o coronel Ariel Sanchez
Link:https://ufo.com.br/uruguai-e-seus-arquivos-secretos-entrevista-com-o-coronel-ariel-sanchez/
Source snippet
Revista UFOJuly 17, 2010 URUGUAI E SEUS ARQUIVOS SECRETOS: ENTREVISTA COM O CORONEL ARIEL SANCHEZ Ultima atualizao: 17 de julho de 20...
Published: July 17, 2010
13.
Source: ufo.com.br
Title: a forca aerea do uruguai pesquisa objetos voadores oficialmente
Link:https://ufo.com.br/a-forca-aerea-do-uruguai-pesquisa-objetos-voadores-oficialmente/
Source snippet
A Fora Area do Uruguai pesquisa objetos voadores oficialmente Revista UFOJuly 1, 2003 A FORA AREA DO URUGUAI PESQUISA OBJETOS VOA...
Published: July 1, 2003
Additional References
14.
Source: montevideo.com.uy
Link:https://www.montevideo.com.uy/Ciencia-y-Tecnologia/Congreso-de-ufologia-en-Montevideo-uc124443
Source snippet
Congreso de ufologa en MontevideoCONGRESO DE UFOLOGA EN MONTEVIDEO CON LA PARTICIPACIN DE EXPONENTES DE URUGUAY, ARGENTINA, BRASIL Y C...
15.
Source: ufoac.com
Link:https://ufoac.com/the-commission-for-the-study-of-ufos-published-an-analysis-of-the-characteristics-of-unidentified-flying-objects.html
Source snippet
The Commission for the Study of UFOs published an analysis of the characteristics of unidentified flying objectsURUGUAY: THE COMMISSION F...
16.
Source: busqueda.com.uy
Link:https://www.busqueda.com.uy/Secciones/Comision-de-la-Fuerza-Aerea-ha-investigado-mas-de-1-570-denuncias-sobre-ovnis-el-3-no-concluyo-con-una-explicacion-convencional–uc52920
Source snippet
isin de la Fuerza Area ha investigado ms de 1.570 denuncias sobre ovnis; el 3% no concluy con una explicacin convencionalJuly 1...
17.
Source: afhistory.af.mil
Link:https://www.afhistory.af.mil/FAQs/Fact-Sheets/Article/754884/ufo-questions/
Source snippet
Questions > Air Force Historical Support Division > Fact SheetsUFO QUESTIONS Unidentified Flying Objects (UFOs) and Air Force Project Blu...
18.
Source: uapdisclosurefiles.com
Link:https://uapdisclosurefiles.com/files/cendoc-envelope-11-1989/
Source snippet
CENDOC Envelope 11 1989 OVNI Registry Transfer UAP FilesFebruary 28, 1989 PAGE 28 ENGLISH TRANSLATION AIR FORCE RECEIVING AND INVES...
Published: February 28, 1989
19.
Source: theufochronicles.com
Title: J. Gevaerd Editor Brazilian UFO Magazine One of the smalle
Link:https://www.theufochronicles.com/2012/02/uruguay-air-force-openly-researches.html
Source snippet
Uruguay Air Force Openly Researches UFOs for More Than Three Decades Interview with Colonel Ariel Sanchez (Part I)February 8, 2012 UR...
Published: February 8, 2012
20.
Source: montevideo.com.uy
Title: Informe de Fuerza Area niega ovni | Montevideo Portal
Link:https://www.montevideo.com.uy/Noticias/Informe-de-Fuerza-Aerea-niega-ovni-uc115375
Source snippet
July 28, 2010 INFORME DE FUERZA AREA NIEGA OVNI CRIDOVNI, COMISIN DE LA FUERZA AREA URUGUAYA QUE SE ENCARGA DE INVESTIGAR LAS DENUNC...
Published: July 28, 2010
21.
Source: elpais.com.uy
Title: 50 anos de archivos x en uruguay
Link:https://www.elpais.com.uy/informacion/50-anos-de-archivos-x-en-uruguay
Source snippet
50 aos de archivos X en UruguayOctober 31, 2007 Ser festejo y despedida, porque "la gente ya no tiene inters en el tema", La Fuerza...
Published: October 31, 2007
22.
Source: youtube.com
Link:https://www.youtube.com/watch?v=e1ZaMcvbW38
Source snippet
DECLASSIFIED UFO FILES IN LATAM: ARE THERE HUNDREDS OF CASES? | EDT 171...
23.
Source: ojedafigueroa.blogspot.com
Title: Jose Ojeda: C.R.I.D.O.V.N.I
Link:https://ojedafigueroa.blogspot.com/2010/12/cridovni.html
Source snippet
Image Image Comisin Receptora e Investigadora de Denuncias de Objetos Voladores No Identificados (C.R.I.D.O.V.N.I.) Image Image Image HI...
Topic Tree



