First: One Object, Second: Few colorfull objects, Final: Again One object

Returning from a trip, we were near Santiago (a the east): Suddenly we saw a object looking to the west. It was a little white but brilliant point. It moved fast great distances (about 2 kilometers) to the north, south and again to the original position, maintaining the altitude. Suddenly it exploded showing a lot of coloful lights (red, blue, yellow dots). Some minutes after that it was again only one object like at first. The sight was at night so the light were well seen. The distance between us and the object was maybe approx. 5 to 10 kilometers. At the end the object appeared to flight towards us, so all of us were exited and more or less frightened. Finally the object made a fast change of trayectory and dissapeared.