UFO sighting??

UFO sighting??
We were driving in the evening and we suddenly spotted a really bright white dot in the sky (doesn’t look super bright in the photo but irl it was very very noticeable), at first we thought it was a plane or a planet but it was completely still and it kinda looked like it was shaped like a cross (2nd pic) and after around 20 seconds the light of it suddenly went out and it became a dark grayish spot which very suddenly disappeared after around 10-15 seconds. I didn’t record any videos but it happened exactly as I described. 

Time: 13th of February 18:40
Location: Madrid