Strange grey UFO in Ayia Napa, Cyprus

On May 24, 2015, two friends came out of a restaurant in Ayia Napa (southern coast of Cyprus). Suddenly, one of them has noticed a strange object flying at high altitude in sky. What is it?

Witness report:

Myself and my friend was at McDonald's in Ayia Napa, Cyprus for some lunch. When we finished and went back outside, we sat on our quads. I then looked up into the sky and saw this object. I then pointed it out to my friend who also looked up and saw this object. As I was pointing it out to him, some other random people looked up also, and they noticed it to. I didn't have a clue what the object was as I saw this robotic arm extending out, then retracting, then repeating this process numerous times. The object was completely stationary with no side movement or up and down movement. The only movement was from the arm. There was no lights coming from the object and there was no sound what so ever? The object was a dome shape with a flat black base, but the rest of the body and arm was grey. My feelings were of confusion as I can't explain what the object is? My reaction was of calm nature, but curiously quizzing my friend. I had the same feelings during and after the sighting. Even until now. Unfortunately we had an appointment at 12pm, so we were already running late, and had to leave the scene of the sighting? Because of this I was unable to record a video, which I regret not doing.