The event happened not to me, but to a friend of mine. I was inside my apartment, when I heard my friend scream: " UFO," so I went outside to see what was going on.
When I got outside, she was telling some other people about what she had seen.
She told me that while she was outside with her dog, she was looking on the direction of northeast when she saw a strange object just above some trees. At first glance, she though that it was an airplane, but then she told that the object hovered above the trees, at straight angle.
She realized that it was not an airplane. Then the UFO moved to the left, and then moved to the right!
She then told me that the UFO was disc-shaped, and it was pulsating a white colored light in the middle of the UFO. After she saw the whitish light pulsating, and not been able to move while she was observing the event, she saw the UFO just disappear.
After the UFO event, I made her write everything down, and made her do drawings of the UFO. She told me that she was feeling scared because she had never witness a UFO...
After talking with her for a while, she still could not believe that she saw a strange object.
She also wrote everything she saw besides the drawings of the UFO... She wrote it all in Spanish.
Special thanks: UFO Casebook & MUFON