The Dionisio Llanca Abduction (1973)
On October 27, 1973, Argentine truck driver Dionisio Llanca stopped along Route 3, near Bahía Blanca, to change a flat tire. An intense light suddenly immobilized him, followed by the appearance of a flying object accompanied by three tall, pale-skinned humanoid figures with prominent foreheads. Llanca was later found disoriented hours afterward, kilometers from his truck, which remained at the scene.
Witnesses
1 truck driver
Why it endures
One of the most documented and discussed abduction cases in all of South America, with a witness found physically disoriented far from the scene of the incident.
Official version (contested)
No conventional explanation was ever officially accepted by Argentine authorities for the witness's disappearance and later discovery.