The Navy has said it has top-secret information about unidentified flying objects that could cause "exceptionally grave damage to the National Security of the United States" if released.
A Navy representative responded to a Freedom of Information Act request sent by a researcher named Christian Lambright by saying the Navy had "discovered certain briefing slides that are classified TOP SECRET," Vice reported last week.
But the representative from the Navy's Office of Naval Intelligence said "the Original Classification Authority has determined that the release of these materials would cause exceptionally grave damage to the National Security of the United States."
The person also said the Navy had at least one related video classified as "SECRET."
Vice said it independently verified the response to Lambright's request with the Navy.
Lambright's request for information was related to a series of videos showing Navy pilots baffled by mysterious, fast objects in the sky.
The Navy previously confirmed it was treating these objects as UFOs.
An image from a 2004 video filmed near San Diego showing a UFO.
(CNN/Department of Defense)
The term UFO, along with others like "unidentified aerial phenomena" and "unidentified flying object," does not necessarily mean the object is thought to be extraterrestrial. Many such sightings ultimately end up having logical and earthly explanations — often involving military technology.
A spokeswoman for the Pentagon had also previously told The Black Vault, a civilian-run archive of government documents, that the videos "were never officially released to the general public by the DOD and should still be withheld."
The Department of Defense videos show pilots confused by what they are seeing. In one video, a pilot said: "What the f--- is that thing?"
The Pentagon spokeswoman Susan Gough said this week that an investigation into "sightings is ongoing."
Joseph Gradisher, the Navy's spokesman for the deputy chief of naval operations for information warfare, told The Black Vault last year: "The Navy has not publicly released characterizations or descriptions, nor released any hypothesis or conclusions, in regard to the objects contained in the referenced videos."
You can watch the 2004 video here, as shared by To the Stars Academy, a UFO research group cofounded by Tom deLonge from the rock group Blink-182:
One of the videos was shared by The New York Times in December 2017, with one commander who saw the object on a training mission telling The Times "it accelerated like nothing I've ever seen."
Another pilot told the outlet: "These things would be out there all day."
Pilots told The Times that the objects could accelerate, stop, and turn in ways that went beyond known aerospace technology. Many of the pilots who spoke with The Times were part of a Navy flight squadron known as the "Red Rippers," and they reported the sightings to the Pentagon and Congress.
"Navy pilots reported to their superiors that the objects had no visible engine or infrared exhaust plumes, but that they could reach 30,000 feet and hypersonic speeds," the Times report said.
Scientists also told The Times they were skeptical that these videos showed anything extraterrestrial.
Gough, the Pentagon spokeswoman, would not comment to Vice on whether the 2004 source video that the Navy possessed had any more information than the one that has been circulating online, but she said that it was the same length and that the Pentagon did not plan on releasing it.
An image from the 2015 video.
John Greenewald, the curator of The Black Vault, told Vice in September that he was surprised the Navy had classified the objects as unidentified.
"I very much expected that when the US military addressed the videos, they would coincide with language we see on official documents that have now been released, and they would label them as 'drones' or 'balloons,'" he said.
"However, they did not. They went on the record stating the 'phenomena' depicted in those videos, is 'unidentified.' That really made me surprised, intrigued, excited, and motivated to push harder for the truth."
US President Donald Trump said in June that he had been briefed on the fact that Navy pilots were reporting increased sightings of UFOs.
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.