London set to become 'mega-city' with 11m people by 2050

London's population is booming and by 2050 it is expected to be a "mega-city" with 11 million people.

To support this increase, 600 new schools and colleges need to be built as well as 50,000 homes a year.

The Mayor of London Boris Johnson has outlined how he would to deal with the issue, while Labour MP Sadiq Khan says people need infrastructure now, and not in 2050.