Was Russia protected by a UFO?

The fall of a meteorite in Russia during the last 15 days was a real surprise, given the unlikely likelihood of an event of similar magnitude. Well, but the potential catastrophe has not been the only commented point of the event. In fact, it is speculated that a UFO (Unidentified Flying Object) may have partially destroyed the boulder before it touched Russian soil.

One Russian publication even produced a video (see below), which highlights the exact moment of the collision between the meteorite and such a flying object. In fact, one clearly sees "something" coming into contact with the heavenly body, which then comes loose from some smaller parts.

Anyway, is this a missile? An unofficial alien guard? Of course, this has been the argument most held by a legion of particularly impressionable people. There remains to be some official comment from the government - assuming there will be one, of course.