Iran's nuclear programme is set to top the agenda at international talks in Vienna today.

Iranian representatives will meet with EU and American counterparts to discuss the progress made in a deal reached last year.

US Secretary of State John Kerry and Iran's Foreign Minister Mohammad Javad Zarif are among those due in Austria for the talks.

It is expected that the UN atomic watchdog will say that Iran has complied with the agreement aimed at putting a nuclear bomb out of Tehran's reach.

In exchange for compliance with the agreement, Iran will receive billions of dollars worth of sanction reliefs.

Iran has always denied wanting nuclear weapons, saying its activities are exclusively for peaceful purposes like power generation.