An image from of U.S. military pilot's sighting of an "unidentified aerial phenomena" that some think is evidence of UFOs.
The officials who briefed The Times also note the report will have a classified annex, which will not be made public.
There is no evidence that unexplained aerial phenomena spotted in recent years by U.S. military personnel are aliens, an upcoming government report quoted by The New York Times Thursday said, but officials still can't explain the mysterious aircraft. But it also can not rule out the possibility that they are alien spacecraft.
The newspaper, which cited senior administration officials briefed on the findings of the highly anticipated report, said they were able to confirm the unusual vessels were not the product of secret Pentagon technology.
Nor were they related to objects like research balloons, which some postulated were behind the reports.More news: Facebook suspension of Trump to last 2 years
A highly-anticipated government report is reportedly expected to say there is no evidence that aerial phenomena encountered by U.S. Navy pilots in recent years are extraterrestrials.
One senior official briefed on the report said intelligence and military officials increasingly worry the phenomena could be China or Russian Federation experimenting with hypersonic technology. The office of the Director of National Intelligence and the Defense Department compiled the report.
USA intelligence agencies are expected to release a report of everything they know about UFOs to Congress later this month.
However, the presence of a classified annex does present opportunities for conspiracy theories to arise, the Times' sources cautioned.
The report, The Washington Post said, "will offer no firm conclusions about what the objects. might be".More news: 'I was right about Wuhan lab': Trump demands China pay $10 trillion
There have been several documented encounters between U.S. Navy service members and UAP released to the public in the past few years.
In March, former Director of National Intelligence John Ratcliffe also declared that the physics-bending maneuvers of the UFOs are "difficult to explain".
"It's time to release the full report, videos & data that we've seen in the Pentagon".
Luis Elizondo, who worked on the Pentagon's UAP investigation and has urged it to reveal what it knows, said some of the sightings suggest extremely advanced technology unknown to humans.More news: Virus variants get new names - to help us keep them all straight