IAEA chief 'not too optimistic' ahead of Iran meeting

The head of the UN nuclear watchdog said on Wednesday he was not confident there would be a breakthrough with Iran over the Islamic republic's nuclear activities when talks resume later this week.

The International Atomic Energy Agency (IAEA) meets Iranian officials on Friday, more than two months after previous talks ended in failure, and is expected to seek to persuade Iran to address questions about its suspected nuclear weapons research. (Reuters)