US Government officials previously denied having any interest in the UFO phenomenon since the 1960s when a series of investigations ended.

The revelations were accompanied by video filmed of a US Navy pilot's radar showing apparent UFO said to have been seen by several witnesses, and which investigators claimed defied physics.

UK UFO hunters had hoped the British authorities may have felt compelled to reveal details of any secret UFO programs that may have been running over here.

The response is likely to leave them disappointed.

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