The UN said its report on whether or not Iran worked toward producing nuclear weapons will not be definitive. Photo: Wikimedia Commons.

A U.N. report on whether Iran has in the past carried out work related to nuclear weapons will not reach a definitive conclusion on the subject, the chief of the U.N. nuclear agency said on Thursday.

The report by the International Atomic Energy Agency (IAEA) is required under a deal between world powers and Iran which provides for a lifting of sanctions against the Islamic Republic in exchange for restrictions on its nuclear program.

Read full story at Reuters.