An impressive flying saucer over Toronto!

On May 15, 2013, in broad daylight, a woman decided to take a photo of herself. But when she looks her selfie, she noticed that a grey flying saucer was appeared in the sky of Toronto (Canada)!

Witness statement:

I was intending to take my own picture, but after several days I looked over the photo, I just noticed the strange thing came out on the background of my photo. I don't know what is it and during the time I took that photo, I don't think I hear any noise.