Silver alien craft spotted in Iran

On November 15, 2017, a witness saw a strange silver alien craft in Sowme Sara, Iran. What is it?

Witness report:

That night at my grandmother’s house. It was about 3 am. My grandmother’s backyard is very large and behind the house is a large garden with many trees that have no lights. The instant I came out of the house I immediately saw that object. The top of the trees at the bottom of the yard. I think the diameter was a bus size. It was silver and slightly shiny with white and blue lights. I did not feel scared and curiously went to the middle of the yard, but when I got closer, it moved back. When I was moving, I felt a sense of a warning to my mind. I was afraid and persistent. I looked at it for about a minute, so long, I felt like he was looking at me. Then I went back a few steps and then went back and then suddenly disappeared quickly to the top.

Ufologist of MUFON Ken Pfeifer is investigating this case.