http://www.telegraph.co.uk/news/news...r-Kremlin.html
The object has been compared to an Imperial Cruiser in the Star Wars films and witnesses estimated it could be up to a mile wide.
Two film clips exist which appear to show the same object and footage has been repeatedly playing on Russian television news channels.
The shots, one taken at night from a car and one during the day, were both filmed by amateurs.
The 'craft' was said to have hovered for hours over Red Square in the Russian capital.
The clips of the 'invasion' have gone to the top of the country's version of YouTube.
