Bids for 2020 Olympics submitted

Istanbul, Madrid and Tokyo have officially submitted their bids to be the host city for the 2020 summer Olympics.

The three cities handed over their files to the International Olympic Committee in Lausanne on Monday - exactly eight months before the vote which will decide who wins.

The books run to several hundred pages and represent the cities' master plan of venues, budgets, financial guarantees, security, accommodation and other key aspects of the projects.

The files are to be released publicly by the bid cities on Tuesday.

The IOC's evaluation commission, headed by Craig Reedie of Britain, will visit the cities in March and prepare a report for IOC members in June.

The full IOC will select the host city in a secret ballot in Buenos Aires on 7 September.