Massive UFO event in Russia: Crashed flying saucer?

Only hours prior to this event, air-traffic controllers in Yakutks, Siberia claim to have picked up a UFO on radar travelling at 6000 mph at a height of 65000. When they tried to speak with the crew of that craft they heard bizarre cat noises being uttered to them. Are these two events connected? Was this the craft that crashed later that day? And finally: Did the craft actually crash at all or was this just a noisy landing?
The video below shows some footage taken of the event.

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