I was on guard duty on a motor pool late at night when i and a number of the marines that were around the area saw jeep start up by itself and a truck and drive threw a gate by itself with no one driving them then we notice a bright light in the sky.we all yell halt but we all seen no one was driven. we all seem to lose our sense of time After this was over the naval investagator or NIS question us they told me they found the vehicles in the desert 20 miles away from the post or base. they could not find any tracks in the desert. they told me to not talk about this incident to any one I heard one of them say we were guarding the gost post. I am sure navl intel. knows more about ufos then they put on. these acted real strange due to apperances also i never seen id from them. I know their was more sightings in and around base at this period of time.