Red Glowing Triangle: UFO Italy, Milan 5 July 2012

A new ufo video sent in by a reader.
At first I thought it was a plane caught in a sun lens flare but i am not so sure. Your thoughts?:

Posters comments:
This video was recorded on July5 2012 by skywatcher Antonio Urzi over Milan!
It was recorded with a Canon HD Legria HFR 306!