Iranian Foreign Minister Mohammad Javad Zarif said Thursday he his hopeful Iran and a group of world powers can reach a final agreement on his country's nuclear program within a reasonable period of time.
But during a visit to Greece, Zarif also said an agreement will not happen if there are "excessive demands."
Iran and the group that includes Britain, China, France, Russia, the United States and Germany have given themselves until June 30 to form a final deal curbing Iran's nuclear activity in exchange for sanctions relief. The two sides agreed to a framework in April, but still need to work out details such as how quickly to lift the sanctions that have hurt Iran's economy.
