No breakthrough at Iran nuclear talks, ministers push for deal soon

By Parisa Hafezi and Arshad Mohammed VIENNA (Reuters) - Tehran and world powers were still shy of a breakthrough at nuclear talks on Thursday as foreign ministers flew in to help push for a swift deal and resolve disputes over how sanctions could be lifted and how Iran's compliance would be monitored. Iran is in talks with the United States and five other powers - Britain, China, France, Germany and Russia - on an agreement under which it would curtail its nuclear program in exchange for re