Lights in the sky above Harrisburg PennsylvaniaWednesday evening, September 18, 2002, at 20:20 hrs, clear sky. I noticed a yellow/white light in the north east sky over in the area of interstate 81, north of harrisburg. I would estimate golf ball size at arms length. The light turned off like an over head light and then reappeared farther north. This time the light hovered and then moved from left to right in the sky. Became stationary and went out again. The light appeared again in a different part of the sky, more east hovering ... on two separate occassions two others lights appeared asthough they were dropping to the left and right diagonally forming a triangle. The second and third objects disappearing into the night. My wife and I thought it bizarre because no other marker lights were on the objects and there was no sound. Being prior military and around aircraft I was amazed by the angles at which these objects moved. The activity lasted for approximately 15 minutes when I saw the light turn off. I contacted the area airport a few days later to see if anyone else reported the occurrence. The airport ops stated nothing unusual was reported for that evening.((NUFORC Note: Please see other report from Pennsylvania for this date. We wonder whether the lights might have been advertising lights, but the other witness insisted that such was not the case. PD))((FOLLOW-UP RESPONSE FROM WITNESS))Mr Davenport,My residence is in Enola Pa which is West of Harrisburg just across the susquehanna river. 1 Mile by the crow. As I watched the Phenomenon I was facing the North East sky. This would have place the sighting over the area of the Enola Train Yards, the susquehanna river, south of the Interstate 81bridge, which is due north of the city of Harrisburg. I was not able to distinguish any shapes to the phenomenon but I was able judge some relative distance because I was able to see the mountain tower lights across the river that are located in the Linglestown area. These objects were definitelybetween the background lights and the location from where I was standing. Again, it was nothing like I have ever witnessed before ... the maneuvering of the lights was simply amazing. I hope this information helps and I would be happy to help out as much as I can. Thanks for your time.((END FOLLOW-UP))