The Olympic torch has begun its tour of London - and the weather is cooperating.

After weeks of chill and rain, the sun came out Saturday as thousands of people turned out to watch the flame begin its seven-day trip of the Olympic host city.

The torch started at the Royal Observatory in Greenwich, the home of Greenwich Mean Time (GMT). It was then carried to the Cutty Sark, a newly restored 140-year-old ship docked in the River Thames.

Saturday's torch relay included stints from London's youngest and oldest torchbearers: 12-year-old Chester Chambers, and 101-year-old Fauja Singh. Like most other torchbearers, they were nominated by their communities.

The torch will continue to tour London until it ends its journey at the Olympic Stadium for the opening ceremony in the capital on July 27.