STRANGE LIGHTS IN THE SKY, WILLIAMSBURG, MI.I was driving East on M72 W in Grand Traverse County, MI, just past a casino with a lot of lights. I drive this stretch daily/nightly. I saw on the right hand side/south side of the road, in the sky, three sets of lights. They were all red & green. One set of lights was off to the left more and the other two sets were closer together, flashing. I actually couldnt see anything but the lights, so I didn't see a craft. It didnt appear to be too far into the sky. As I got closer, trying not to crash & too afraid to pull over, It seemed that the set of lights closest to me continued to flash & the other two were just green, no red seen at the point of passing it. The light werent in a straight line. I was wondering if the craft, if it was, was attracted to the lights of the casino?