An object was observed. Physiological effects were noted. Ground traces were found.

One blue-white domed disc, about 20 feet across, was observed by a group of male witnesses, typical age 19, in a rural area for over 15 minutes (Fioco; Machado; Mina Da Silva). Four 5-foot-tall grey beings, each wearing a diver's suit and helmet, were seen.

People shouting about a mysterious object visible on a hillside awakened Tiago Machado, 19. He got his binoculars and went to see the object, approaching to within 30 ft. It was a domed disc, aluminum colored, about 12 ft in diameter and 5 ft high. A hinged door was open in the top of the dome, and from this two humanoid figures emerged and seemed to float to the ground; two others were visible inside the craft, through windows. The beings, 4.5 ft tall, were dressed in tight, silvery garments without buttons, covering them from feet to head. Their features were seen through transparent helmets. Their skin was yellow, eyes slanting, and the mouth with thin, slit-like lips. They came to within 3-4 meters of the witness. When they laughed at the witness, who was puffing a cigarette, he could see that they had black teeth. He tossed the cigarette pack close to one, who put his hand above it; the pack floated up into his hand. The thumb of his hand was set further back than on a human hand. The beings spoke in "hoarse, guttural" sounds. When a friend called out to the witness, the entities walked backward and re-entered through the door; the second one, when halfway through, pointed a tube at Machado, which emitted a bluish flame that "floated" toward him. When it hit him, he felt pain and was paralyzed; as the UFO took off, almost horizontally, the witness fainted. A welt remained where the flame had struck him. On the ground were found three landing-leg marks.

Google map of this location.