Medical student says being top beauty queen 'a huge responsibility'. Robin Millard reports in London.

Miss South Africa, 22-year-old Rolene Strauss, was crowned Miss World 2014 at the pageant's final in London on Sunday, with an estimated billion viewers watching on television around the globe.

Miss Hungary, Edina Kulcsar, was the runner-up and Miss United States, Elizabeth Safrit, came third in the 64th annual competition, contested by women from 121 countries.