While out on a break i observed what appeared a sphere object coming from the West going South and then disappeared - then shortly another one came from the West and headed Southeast and disappeared-right behind another appeared and was going South and then zipped around in a sharp right angle and started going West. I thought the objects were UFO's because it has been a hub of activity thru this area at night between 1 am to 4 am. There was absolutely no noise from the objects and were flying too fast for aircraft. i had to go back in and unknown where they headed to