2 large objects with many much smaller objects floating in the sky over Phoenix Sky Harbor airportWalking east in a parking lot at Salt River Drive and Priest in Tempe, AZ, then looked towards Sky Harbor and noticed 2 large objects with multiple, much smaller objects around them. The person with me also saw these objects and neither of us could determine what the objects were. There were flashes from the smaller objects that were quite random and appeared to be reflections of the sun light.The objects appeared to be moving in a North, northwest direction, and behaving much like a balloon. It was very hard to make out the shapes but the 2 larger objects appeared almost diamond shaped while the smaller objects were just dots. The objects seemed to have a reddish color.I had to enter a building and by the time I was able to get to a higher floor, about 5 minutes later, there was no sign of the objects.