CCTV footage has revealed how an unaccompanied 11-year-old girl was able to sneak past airline employees before boarding a flight across western Russia without a ticket or identification. Russian authorities launched an investigation into security procedures to find out how the girl was able to get past airport and airline staff before boarding the Rossiya Airlines flight to St Petersburg.She decided to sneak onto the plane in Moscow because she had never flown before and was eager to experience it for the first time.