This document dated June 25, 1996 and released March 25, 1997 is from the archives of the CIA. It reports a UFO observation by policemen near the Lithuanian border.
This document from the CIA's archive is about a very interesting and detailed case originally reported by the soviet TASS information agency.
It also shows that the CIA still collects informations on UFOs worlwide in 1996.
See also this French press article about this event.