LONDON (AP) -- Britain's National Archives has released 19 more files related to UFOs. The new material, which can be found online, covers UFO sightings between 1986 and 1992.
While the 1,500-page batch of documents debunks a host of UFO sightings, others remain unexplained.
For instance, in July of 1991 a Britannia Airways crew saw a "a small black lozenge-shaped object" zipping past about 100 yards to the left of the aircraft.
The airport confirmed seeing an object on its radar, and air traffic controllers quickly warned the next aircraft to turn out of the object's flight path, though by then the object had disappeared.
This is the second batch of UFO files released this year. More will be released over the next few years.
(Copyright 2008 by The Associated Press. All Rights Reserved.)