MYSTIFIED air traffic controllers claim they were contacted by a high-speed UFO piloted by a female sounding alien.
Stunned Russian sky monitors said the pilot of the unknown air threat spoke to them in a "cat-like language".
Extraordinary video has emerged of the air traffic controllers' screens showing the mystery blip jumping across the display.
The incredible footage has sparked excitement among UFO watchers but other observers claim the film could be a fake or possibly a secret Russian missile test.
During the video an air traffic controller is heard on the two minute, 54 seconds video saying he tried to make contact with the craft.
The shocked controller says: "I kept hearing some female voice, as if a woman was saying miaow-miaow all the time."
Voices are heard saying the craft was flying at a sensational speed of more than 6000mph, rapidly changing direction in the early morning sky.
The UFO was also apparently logged at a height of 64,895ft above sea level and appears to interfere with aviation frequencies.
Defence experts say the mystery craft could be a covert missile flight.
Peter Felstead, of Jane's Defence Weekly, said: "It could be the test of a missile system. The Russians still have the capability and the key technologies to build something of that speed."
But Peter leaves open the possibility that the UFO may be something other than a missile test.
He said: "For a test to happen in commercial airspace would be very odd."
UFO expert Nick Pope, who investigated mystery air threats for the Ministry of Defence, said: "This is a bizarre incident. Given that the UFO was tracked on radar, we've got some hard evidence that something extraordinary happened.
"If the alleged alien voice has been recorded, it should be analysed by a codebreaker."
The footage, on YouTube, shows the green object burst on to flight monitors over the remote Russian diamond capital of Yakutsk, in the country's far east.
At one point the UFO is shown moving away from Yakutsk at great speed before turning and heading back towards the city.
Last night cagey airport officials refused to comment on the alleged UFO which was designated as '00000' because it did not have a flight number.
The footage was first posted last month but it is unclear when it was taken.
The camera pans across the control tower windows before focusing on the controller's circular screen.
Some observers on YouTube have expressed concerns the film is a fake.
One noted the shot of the airport did not appear to show any snow which is normal for eight months of the year in Yakutsk, where the temperature last night was minus 36C.
Siberia
UFO
UFO Incidents
UFO seen by Siberian Air Controllers
UFO Sightings
UFO SIGHTINGS IN THE WORLD
0 comments