UN's Ban: Climate change 'defining issue of our time'
United Nations Secretary-General Ban Ki-moon marches with hundreds of thousands of people in New York for the international day of action on climate change. Rough Cut (no reporter narration).
President Tayyip Erdogan adamant that Turkey did not pay ransom for released hostages, but was noticeably less emphatic when asked about a prisoner exchange, saying a "swap may or may not have" taken place." Kitchener reports.
Former finance minister Ashraf Ghani was named Afghanistan's president-elect after signing a deal to share power with his opponent, ending months of turmoil over a disputed election. Jillian Kitchener reports.
This year the X Factor finalists have reunited to record Heroes. The single will help raise money for the Help For Heroes charity, who look after the injured men and women on the British Armed Forces.