I am not surprised that these clouds were mistaken for UFOs.
People often mistake lenticular clouds for UFOs because of the shape they create.
The photographer was so convinced so he sent the photos to the Ministry of Defense.
I would have done the same thing if I saw these!
They look exactly like the hovercrafts in movies.
The first photograph is a shot taken from a distance and the second one is an up-close shot.
There are still people that believe they still have something to do with aliens even when told they are just clouds.