UN General Assembly: Obama condemns global extremism
US President Barack Obama has urged global leaders to rally against extremism in an address to the UN General Assembly in New York.
Mr Obama said it was the obligation of all leaders to speak out forcefully against violence and extremism, as he framed his speech with references to the US ambassador murdered in Libya.
Unrest across the Middle East is set to dominate discussion at the summit, amid the continuing crisis in Syria and protests across the region sparked by a US-made film insulting the Prophet Muhammad.
Jeremy Bowen reports.