Colares and Operation Prato
In late 1977, luminous objects descended nightly on the Amazon island town of Colares, firing thin beams that left burns and puncture marks on dozens of residents — a phenomenon locals called the 'chupa-chupa.' Brazil's Air Force responded with Operation Prato, a months-long field investigation that produced hundreds of photos and reports, was abruptly closed, and haunted its commander to his death.
- When
- October 1977 - early 1978
- Where
- Colares, PA, Brazil
- Witnesses
- 400
- Physical evidence
- Yes
- Military involvement
- Yes
The Sighting
Through 1977, reports of strange lights spread along the rivers and coasts of Para state in northern Brazil — but they converged with unique intensity on Colares, a fishing town on an island at the mouth of the Amazon. Residents described objects of many kinds: silent discs, cylinders, and small probe-like lights that came in from the sea at night, low over the rooftops. The frightening part was contact: witnesses reported thin, concentrated beams — like a hot needle of light — that struck people, typically on the chest or neck, leaving small burn marks and paired puncture wounds, followed by weakness, dizziness, headaches, and in some accounts a feeling of blood having been drawn. Locals named the phenomenon 'chupa-chupa' — the sucker. The town doctor, Wellaide Cecim Carvalho, treated dozens of patients with unexplained superficial burns and marks; she publicly affirmed for decades that the injuries were real and unlike anything in her practice. Night vigils with bonfires and fireworks were organized; some residents fled the town. Mayor Jose Ildone Favacho Soeiro appealed for federal help.
The Investigation
What happened next has no parallel: the Brazilian Air Force's I COMAR (First Regional Air Command, Belem) launched Operacao Prato ('Operation Saucer') in roughly October 1977 — an official military field study of an ongoing UFO flap. A small team under Captain Uyrange Hollanda deployed to Colares and surrounding villages with cameras and recorders. Over about four months the team logged hundreds of witness interviews across some thirty communities, took photographs of unexplained lights (estimates run to 500 photos), shot hours of film, and produced reports with maps, sketches, and object classifications. Then, in early 1978, the operation was abruptly terminated without public conclusions.
For two decades the files were denied. In 1997, the now-retired Colonel Hollanda gave a long filmed interview to Brazilian ufologists Ademar Gevaerd and colleagues, confirming the operation, describing far more material than ever released, and stating his personal conviction that the phenomena were real, technological, and not of human origin — he described his own close-range sightings during the operation. Weeks after the interview, Hollanda was found hanged at his home; his death was recorded as suicide, and while family and researchers link it to depression, it inevitably deepened the case's shadow. Beginning in 2004-2005, under pressure from Brazilian researchers, the Air Force declassified batches of Operation Prato documents — witness statements, sketches, and reports that confirm the operation's scope, though researchers maintain much material, including most photographs and films, remains unreleased.
The Explanations
Skeptical analyses face an unusual problem at Colares: the primary documentation is military, contemporaneous, and voluminous. Proposed prosaic ingredients include misidentified aircraft, satellites, and meteors over a population under stress; mass psychogenic illness propagating the chupa-chupa narrative through isolated communities primed by folklore (Amazonian tradition includes light-beings and visagens); and self-inflicted or mundane injuries — insect bites, minor burns — reinterpreted under panic. The injuries were superficial; no deaths were ever rigorously documented as caused by the lights, though local accounts attribute at least two. Critics also note witness descriptions varied enormously, suggesting a composite of many stimuli rather than one phenomenon.
Against this: a serving military team, sent specifically to debunk or resolve the panic, instead accumulated photographs and first-hand sightings its commander considered genuinely anomalous; a physician documented injuries in real time; and the pattern — beams causing burns — recurs in credible cases elsewhere, most notably Cash-Landrum three years later. The Brazilian Air Force has never offered any explanation, only files.
Why It Endures
Colares is the most aggressive UFO wave on record — the rare case where the phenomenon is described not as evasive but as intrusive, physically marking human beings. Operation Prato makes it the best militarily documented flap in the southern hemisphere and a cornerstone of Brazil's uniquely open official engagement with the subject, a lineage running from Trindade through the 1986 'Official Night of UFOs' to the Senate hearings of the 2020s. The chupa-chupa's legacy is double: for researchers, a dossier of injury cases begging for medical follow-up that never came; for the people of Colares, a remembered season of fear, bonfires, and prayers under a sky that would not leave them alone.
The declassified material itself rewards close reading. The released Prato reports include the team's own object taxonomy — witnesses' craft sorted by shape and behavior, with sketches of discs, cylinders, and the small fast probes — and sober log entries recording the investigators' personal sightings, including luminous objects observed and photographed by the team at Baia do Sol. Brazilian researchers estimate the released files at only a fraction of what Hollanda described in 1997, and the campaign for the remainder continues through the country's freedom-of-information channels and Senate hearings. Dr. Carvalho, the town physician, restated her testimony as recently as the 2020s: the burns were real, symmetrical, and beyond her medicine — and her patients were not hysterics but fishermen who wanted the sky to stop.
Official investigation
Operacao Prato — official Brazilian Air Force field investigation (1977-78); files partially declassified from 2004 onward