Subscribe to BBC News www.youtube.com/bbcnews Hidden cameras show three newly born tiger cubs at London Zoo. The tigers were born to five-year-old Sumatran tigress Melati after a 106-day pregnancy. Subscribe http://www.youtube.com/bbcnews Check out our website: http://www.bbc.com/news Facebook: http://www.facebook.com/bbcworldnews Twitter: http://www.twitter.com/bbcworld Instagram: http://instagram.com/bbcnews