Three flying saucers over Siracusa, Italia

On January 29, 2014, around midday, a man, his wife and a salesman have spotted during about one minute three disc-shaped objects. One of witnesses has taken a photo of this phenomenon. What is it?

Witness statement:

Exactly one year ago, 29 January 2014, while opening the front door to a salesman, I witnessed three disc shaped objects in the sky. I estimated their distance to be about 500 meters from me. They flew in a zig zag manner flying north-north east. The entire event lasted not more than 2 minutes. Myself, the salesman and my spouse are witnesses to the event." I submit two photos of the discs and a map of where the sighting took place. I reported the event to the local authorities, but have heard back from them or anyone else.