Thursday, April 5, 2012

An Argentine truck driver, Dionisio Llanca, abducted by Nordic aliens


An Argentine truck driver, Dionisio Llanca, had an enigmatic experience while changing a flat tire on a lonely road. Afterwards Dionisio, a calm and quiet bachelor, arrived at a hospital in Bahia Blanca in a total state of amnesia. A few days later at the hospital, he regained his memory and related his extraordinary experience: a night of an encounter with a flying saucer and three Nordic type aliens who took a sample of his blood and spoke among themselves in a strange sounding language.

The story:

Saturday afternoon, on October 27, 1973, Dionisio Llanca lounged at a modest painted cottage belonging to his uncle, Enrique Ruiz, situated on Chubut Street, only ten minutes from the center of Bahia Blanca. He napped during the siesta period because he would have to drive all night long. He woke up at about 6:00 pm (18:00 hrs.), and watched a television serial, which was realistic, direct and without fantastic elements.

That same night, at about 12:30 am (00:30 hrs.), of Sunday, October 28, 1973, Llanca said goodbye to his uncle and got into his truck, a Dodge 600, loaded with construction materials to deliver them to the city of Rio Gallegos. For Dionisio Llanca, this is a routine two-day trip to the south of the country.

When he went to an Esso gas station on Don Bosco Street for refueling, he noticed that one of the tires was a bit low, but gave it little attention and decided to recheck it upon arriving at the town of Médanos (30 kilometers away) so he wouldn’t waste any more time.

While driving down on route 3, about 19 kilometers from the city of Bahia Blanca, he noticed that the tire was losing air fast, so he urgently needed to stop to change it. He regretted not changing it at the Esso gas station where he had stopped 15 minutes earlier to get gasoline.

At approximately 1:15 am (01:15 hrs.), he pulled over on a dark and desolate shoulder in the cold of the night. He began removing the tools, wrenches, jack and began changing the tire all by himself with no one else around to help him. The road was fully deserted in a wooded area and its surroundings were pitch-black.

As he was changing the tire, he observed that the road was illuminated with an intense yellowish glow about 2 kilometers (about one mile) away. Because of the color, he thought that it could be the headlights of a Peugeot automobile and continued to work without paying attention. While kneeling down changing the tire, the light suddenly positioned itself behind him above the treetops, becoming so bright that it lit the whole area and changed to a bluish color similar to that of an electric arc welder. When he tried to get up to look towards the wooded area where the light was emanating from, he realized that he had no strength in his legs to do so.

Looking back over his right shoulder, he noticed something unexpected; behind him was a huge disc shaped object, suspended about seven meters (23 feet) above the ground and three humanoid beings standing looking at him. He was totally paralyzed and could not even speak.

The three of them just stood there looking at him for a while, according to Llanca, for about five minutes. Then one of the humanoids grabbed him by the back of the collar of his sweater and lifted him up firmly but not aggressively. He tried to talk, but his voice couldn’t come out. While being held by that humanoid, the other one placed a device similar to a razor at the base of Llanca’s left index finger drawing blood. Llanca believes he passed out soon after seeing two drops of blood on his finger, because he couldn't remember anything else after that.

Descriptions of the aliens:  

The aliens were described of the Nordic type. They were two men
and what he perceived to be a woman due to the formation of the breasts and the long blonde hair reaching down to the middle of her shoulders. The men were also blond but with shorter hair. They were about the same height, 4 to 5 feet tall (1 meter and 70 or 75 centimeters) and they were all dressed in a tight-fitted smoky-gray one piece suits, orange boots and long orange gloves reaching to the middle of their arms.  They did not wear belts, neither weapons, helmets nor anything else. Their facial features were like those of human beings, except for their high foreheads and elongated eyes. They spoke among themselves in a strange language, which sounded like a badly tuned radio with chirps and buzzes.

Llanca couldn’t remember when he woke up, but it is believed to be between two or 3 o’clock in the morning of that Sunday. When he opened his eyes, he found himself among the railcars in the yard of the "Sociedad Rural de Bahía Blanca", some 5½ miles (9 kilometers) from where the encounter took place. He was in a state of amnesia, as he couldn't remember even his name, the episode, the truck, or his home. He began walking towards the road and passed out again.

When he woke up, he continued to walk on route 3, and upon reaching the intersection of route 35, a driver found him walking around aimlessly like a robot. The driver picked him up and drove him to a police station where he was subsequently brought to "El Hospital Español" (The Spanish Hospital).

It is still a mystery as to what occurred between the time of the encounter to the time he woke up among the railcars, some 5½ miles (9 kilometers) away and when Doctor Ricardo Smirnoff treated him at the Spanish Hospital. Dr. Altoperro stated that it was a curious case since Llanca, a young man of about 25 or 26 years of age, was in a state of total amnesia.

At the hospital, he still could not remember anything about his past. He did not know who he was, where he was born or even who his parents were. He remembered absolutely nothing about his past. He cried continually and asked what town he was in. When his head or hands were touched, he drew back instinctively as though it would produce pain. He had a bad headache in the right parietal-temporal lobe area. The police was notified and he was subsequently transferred to "El Hospital Municipal" (the Municipal Hospital).

On October 30, 1973, at about 10:00 pm (22:00 hrs.), when he awoke on his bed at the Municipal Hospital of Bahía Blanca, he regained his memory and could remember the experience in detail up to the point he blanked out after seeing his bloody finger. His clothes were intact, folded in the drawers of his hospital room. He felt a desire to smoke and to know what time it was. He searched his clothes and discovered that his watch, his cigarette lighter and cigarettes in a metal box were missing. The pants pockets still contained the 150,000 Argentinian pesos that he carried upon leaving home. He asked about his truck, which worried him more than the UFO and its occupants. He was told that the police had found it parked on a shoulder in Villa Bordeu, some 18 kilometers from the city of Bahia Blanca, with the jack in place and with one of the tires removed. His papers in the glove compartment had not been disturbed.

Hypnotic regression:

On November 5, 1973, Llanca was placed under hypnotic regression, which allowed him to relate the facts he could not remember when aboard the alien spacecraft for over an hours. He explained during hypnosis that when they approached the truck, a biopsy was performed on him; a small skin tissue was removed from his left index finger with a small razor-like device. Then a sort of yellowish light beam left the craft, which drew him into the oval interior of the spacecraft.

Once inside, he saw how the woman handled a number of instruments that he identified as being medical and surgical equipment, perhaps preparing to examine him. One of the men, which Llanca believes to be the pilot, seemed to be sitting in front of the ship’s controls and held in his right hand a lever or a sort of joystick. The other male humanoid was observing the starry sky through a large glass-like panel, an image that was repeated in a series of color monitors located to the left of Llanca.

Suddenly a hatch opened and several hoses and cables were thrown outside the spacecraft. The hoses sank into a small watercourse and the cables made contact with a high voltage tower located nearby.

The woman, serving as a sort of nurse, was still taking care of some instruments on the large table. She changed the orange glove on her right hand for a black one that had spikes on the palm. When she walked over to Llanca, she made an incision on his right temporal area. Then unintentionally struck him on the left eyebrow producing a hematoma (or a bruise) that human doctors subsequently examined and treated.

When they finished examining his head, the aliens proceeded to anesthetize his wound. At this point, he was released from the spaceship completely unconscious, he was later found roaming the streets in a state of amnesia, and his next recollection of the incident was when he awoke at the Municipal Hospital of Bahia Blanca.   


On the other hand, the truck was found at the site where Llanca claimed to have parked it. A few meters from there, it was ascertained that a high-voltage tower was damaged. After consulting with the company that supplied electricity to the city, a team headed by Fabio Zerpa (a well-known Argentinian ufologist), had confirmed that on Sunday, October 28, 1973, between 2:00 and 3:00 in the morning there had been an unusual increase of energy consumption. In addition, doctors who treated him found a clean incision in the scalp and a bruise on his left eyebrow area, coinciding with what Dionisio Llanca had reported.

There are many views generated in this case. Both doctors and researchers of the UFO phenomenon are divided between those who accept that an exceptional event did occur on route 3 that night, and those who believe that we are dealing with what Roberto Banchs (an Argentinian writer) described as "one of the most sophisticated hoaxes to date."

We may never know the truth, but the alleged abduction of Dionisio Llanca was thoroughly examined and investigated by some of the best doctors, psychologists, psychiatrists and ufologists in Argentina. Still to this day, it has been found to be one of the most bizarre cases of the alien abduction phenomenon occurring not only in Argentina, but also in Latin America and in the world. During his many hypnotic regressions, he was able to draw several sketches of the aliens and the spacecraft he encountered on that lonely road while changing a flat tire.

Dionisio Llanca is a simple, almost primitive man. In two days of interviews, he remained withdrawn and did not even smile. He is serious with a remote sense of humor. One of the doctors characterized him as "innocent." When he is asked what he thinks about UFOs, he says, "Nothing, it doesn't interest me." In reality, a few things interest Dionisio: of course his parents, his town and his work. He does not like to think about the events of that night.

The above information was gathered from various sources and some translated from Spanish by PRUFON.


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Although there have been many unexplained sightings in the town of Lajas, the situation there has been hyped by the amount of lies and exaggeration by a group of so-called, "ufologists" who ignore other areas of Puerto Rico to promote tourism in Lajas. That was evident when my wife and my daughter confronted a terrifying experience in the town of Aguada with extraterrestrials and that group of charlatans refused our plea for help. Of course, if it happened in Lajas they would have jumped on the opportunity for fame and tourism for that town. Those hoaxes and lies were approved and sanctioned by the then mayor of that town who named route 303 "The extraterrestrial route". The idea of building an "UFOport" (ovnipuerto), “la llorona sightings" and the biggest hoax of them all, "that a UFO crashed there" all this could only be found in a science fiction novel.

By Nelson C. Rivera
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The dancing alien

The back of United States Quarters depicting Puerto Rico

About me

Ufologist, criminal investigator, musician, artist and writer.

I worked 20 years for the New York City Department of Correction. First as a Correction Officer for 4 years, Captain for 12 years, and as a Deputy Warden for 4 years. As a law enforcement officer and supervisor, I have conducted countless of criminal investigations, some for unimaginable allegations.

On June of 2005, after my retirement, I moved to Puerto Rico with my family where my wife and my daughter faced extraordinary experiences with extraterrestrials. These alien encounters, subsequent abductions of my wife and the lack of help from so-called, "ufologists" here on the island, prompted me to become involved in the field of ufology and in the need to help others who have had similar experiences.


PRUFON, Puerto Rico UFO Network, Inc., is a nonprofit organization which conducts serious no nonsense UFO investigations. Our aim is to find the truth and answers to some of the toughest questions pertaining to UFO sightings, alien encounters and alien abductions, etc. We are not affiliated with any other ufology organization in Puerto Rico or in the world. PRUFON was founded in the city of Aguadilla, Puerto Rico on September of 2009 to share with the public what we have accomplished and researched in the related fields of ufology.

This internet network ( offers a different perspective on life, and works hard to keep you informed about unexplained phenomena occurring on the island of Puerto Rico and in the Caribbean. We collect and gather information dealing with the Unidentified Flying Objects (UFOs) and other unusual events that the mainstream news media and science fail to expose to the public, fail to study or acknowledge.

Any unusual encounter or sighting that you have had and wish an investigation and/or wish to publish it on this website, contact PRUFON at You will remain anonymous if you state it in writing.

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