A big transparent (clogged) object appeared in the clouds.
I was sitting in my car and waiting for my wife and daughter. The car was parked in the shadow of a building. The driver's seat was unfolded and I had been rest on it. I watched clouds and noticed a very straight edge of the clouds. It looks like of corner of huge transparent object in the clouds. I have made some photos of it. The object disappeared after few minutes. The window of drivers side was widely opened (no glass between object and camera). When I came to my house, I have checked photos on the computer and found there was another small object left after big one has disappeared.