Why are all eyes on Iran's nuclear talks in Vienna?
Time is running out for world powers to strike a deal with Iran to cut UN sanctions in return for action to scale back its nuclear programme.
A deadline is due to run out at 23:00 GMT on Monday.
The BBC examines why it is so important to reach an agreement on Iran's nuclear future, as talks continue in Vienna.
24 Nov 2014
- From the section Middle East