Slow moving silent craft seen in the mountains of Comerio, Puerto Rico.I was sitting down with my aunt and my mother on a nice cool night in the town of Comerio, Puerto Rico in 1998. We had been talking about strange light activity my aunt has been seeing in the sky over the mountains of the region (most of the area is mountainous) when we noticed a strange set of lights moving towards our position from above the tree line approximately east of our position. The craft was shaped like an egg except it was wider than it was tall, it wasnt as round as an egg rather more flattened. At first you couldnt hear any sound but for some reason as it came closer we could hear wind as if the craft itself was causing a disturbance in the air with its motion through it. The craft as it approached was about 40 to 50 feet off the ground, just above the tree tops. It was comprised of what seemed to be gun metal colored panels and had blue and white lights in succesion around its entire circumfrence. Im not exactly sure if the panels were gun metal colored but they appeared that way in the light that the craft itself was emitting (it was dark and the only reason we saw it was because the lights on its sides illuminated its shape enough for it to be seen). Id say the craft was maybe 250 to 300 feet away from us and appeared to be quite large, probably the width of about two and a half black hawk helicopters side to side. The craft was silent except for the sound of wind moving through trees under the craft (I know what helicopters sound like and this thing did not emmit such a loud sound, rather literally the sound of wind moving through trees). It flew in an easterly direction away from us and then over the mountain. Id estimate its speed at about 35 to 40 miles an hour because i was able to get a good look at it as the event happened. My mother, my aunt, and myself looked at each other to make sure we had all seen the same thing because during the event we were all speechless. Thats something my mother doesnt like to talk about (shes quite christian and doesnt want to believe its something unexplainable) and my aunt stays adamant that she sees crafts like that and strange lights in the mountains on an average basis and im inclined to believe her, she claims that the lights have been a common occurance since she was a child. Im inclined to believe her because when i happened to mention me seeing strange lights in northern new hampshire to her once she told me about her personal experience with seeing lights in the mountains.((NUFORC Note: Witness indicates that the date of the event is approximate. PD))