Iranian Foreign Minister Javad Zarif said the United States must make political decisions to remove talks on Iranian nuke program from a deadlock.

His comments came after three rounds of talks with Secretary of State John Kerry in Vienna, AFP reported.

During the talks on July 13, the six powers tried to accelerate a comprehensive agreement with Iran that had to be agreed by July 20. The bilateral and trilateral meetings were held during the day, RIA Novosti reported.