White flying saucer caught over Toronto, Canada

On July 2, 2017, a man and his girlfriend were at the Toronto Harbour. At around 5pm, they saw an incredible disc-shaped UFO

Witness report:

Me and my girlfriend were celebrating Canada Day weekend at Harbourfront on Sunday July 2nd, 2017. I looked up in the sky for no particular reason....and noticed this circular white shining disk. As you can see on the video, I asked my girlfriend, what do you think that is? She then witnessed it too....and was thinking it was either a kite or a drone, thinking drones are everywhere. But once she started looking at it again...and then saw the video, she realized that it was not a drone. When looking at the object...I noticed the glaring shininess of the disk...and how it was moving across in a circular motion. It then just disappeared in the clouds, we were watching for awhile, but did not see it again. At that point we then witnessed a black helicopter and thought maybe it was following it? I was shocked witnessing this....I was puzzled. My girlfriend was skeptical at first...but realized it might have not been a drone after all.