While watching Murrells Inlet Fireworks, I watched a number of lights positioned at various points surrounding me, and changing position, color, and apparent shape frequently. Some remained fairly stationary, retaining their magenta/red hue, seemingly drifting up, down, and sideways un-eventfully, yet maintaining their brightness. Others would blink on, grow brighter, and race from position to position, moving what I estimate to be about a mile in seconds. Some would dim and blink out, only to re-appear nearby, growing brighter as they moved rapidly from side to side, then up and down. The best was a magenta light that changed to a brilliant emerald green color and started blinking rapidly. This ship stayed close, brilliant and visible the whole time I was watching. There was also one very bright stationary magenta craft that followed this same pattern. I could not make out craft shapes due to their distance from me, however there is no doubt they were intelligently controlled, and in my opinion, 'not from around here'. It was very interesting that although there were about 30 folks with us watching the fireworks, none saw the lights, or at least none remarked as such. All of this stopped once the fireworks were over. One craft that did come close, may have had a bell shape, not sure. AMAZING!!!