Air traffic controllers in Siberia claim they were buzzed by a high-speed UFO with a female sounding alien who spoke in an unintelligible cat-like language.
The mystery object suddenly burst onto flight monitors over the remote Russian diamond capital of Yakutsk.
It was shown flying at a speed of slightly over 6000 mph, and rapidly changing direction in the early morning sky, it is claimed.
Alien encounter: The UFO is the craft in the centre of the screen closest to the gold writing. In the video the UFO moves comparatively quickly across the radar.