International Atomic Energy Organisation director general Rafael Mariano Grossi (R) speaks to Iran's Foreign Minister Hossein Amir-Abdollahian at a meeting in Tehran. AP
International Atomic Energy Organisation director general Rafael Mariano Grossi (R) speaks to Iran's Foreign Minister Hossein Amir-Abdollahian at a meeting in Tehran. AP

Nuclear deal close to collapse with Iran, Russia and US at loggerheads