1968 - A woman staying by herself at a house on the outskirts of Mercedes, Argentina heard a buzzing sound and her dogs began barking at eight o'clock in the evening. Looking out she saw a brightly lit object that gave off bright flashes of light, sitting on the ground. Smaller lighted objects emerged from the object and hovered above the treetops. At one point one of the lighted objects silently approached the house. The witness then saw a second object on the ground from which the figure of a man wearing a brilliant silvery outfit was seen to emerge. Suddenly there was a brilliant reddish blue flash and the whole scene disappeared. The next day several ground traces were found in the same area where the objects were seen. (Source: Albert S. Rosales, Humanoid

Contact Database 1968, case #6, citing Richard Heiden, quoting R. Banchs).