Source: Planeta UFO and Grupo Crónica
http://www.cronica.com.ar/article/details/55191/conmocion-por-ovni-en-montanas-de-la-patagonia
Date: 02.22.2016
Argentina: Commotion over UFO (or Drone) in the Mountains of Patagonia
The sighting took place between San Martín de los Andes and Villa Melquinia. The discovery took place when a family returned from its vacation and went through their photos carefully on a large screen: there were strange objects visible in the air.
This is how the startling images came to be known, documenting the presence of a UFO over Patagonian soil.
It should be noted that this flying saucer, after being enlarged and analyzed, appears to be a drone - a modern unmanned aerial vehicle which in some cases carries cine or photo cameras). However, the place from which the family saw it, with no one else around, and the object's altitude, is very striking.
According to experts, drones cannot be flown at long distances, which leads to the growing belief that the object photographed along with their summertime memories was a UFO.
[Translation (c) 2016 S. Corrales, IHU with thanks to Guillermo Giménez]