In full: Obama speaks to BBC Persian

Barack Obama has condemned the Iranian president over his recent remarks about 9/11, in an interview with the Bahman Kalbasi of the BBC Persian service.

Mahmoud Ahmadinejad's comments that most people believe the US government was behind the 9/11 attacks were made during an address at the United Nations and prompted a walk out by some delegates.

In the interview, Mr Obama also said Afghanistan would not be abandoned, even if the US began cutting its forces there next summer after an extra 30,000 soldiers were deployed earlier this year.