I was with my brother and my grandfather , he picked us up from school around 13.30 we were in our car , we had the red light from the the traffic lights and i saw some people looking at the sky near by mcdonalds from colonia reforma , when i looked up i saw an object that look like an oval it was silver and reflected a bit of light then i told my grandpa and my brother and they saw it too, a few seconds later the thing flew off incredibly fast.