Iranian billionaire businessman Babak Zanjani has been sentenced to death for corruption, justice officials say.

AR Rahman said that his "decision" to compose the music for the movie "Muhammad: The Messenger of God", "was in good faith” with no intentions to offend any religious group.

The weather is sultry and tempers are fraying during tense negotiations over Iran's nuclear programme - one particularly testy exchange sparked a rash of social media messages and memes.