The report from an alleged UFO sighting by the Chilean military over two years ago has just been declassified leaving experts completely stumped.
The Chilean government agency which investigates UFOs, the CEFAA, reports that a naval helicopter was carrying out a routine daylight coastal patrol in November 2014 when the camera operator noticed an unidentified flying object ahead.
It was flying horizontally and at a steady speed similar to that of the helicopter.
The mysterious object could be seen with the naked eye but couldn't be detected with the helicopter's radar, ground radar stations or air traffic controllers.
Authorities ruled out that it was an aircraft as no craft had been authorised to fly in the area.
The unexplainable object is twice seen emitting a type of gas or liquid with a "high thermal track of signal", a navy technician told the Huffington Post.
The suggestion of an aircraft dumping waste has been ruled out, while the thought of space debris releasing gas was debunked as it was flying horizontally and appeared to be under control.
"It can be concluded that the object has all the characteristics to be classified as an unidentified aerial phenomenon," said Alberto Vergara, lead analyst from the Chilean Air Force's photogrammetric department.