Iran may be poised to expand its nuclear programme at an underground site near the city of Qom, a Vienna-based diplomat has told the BBC.
It appears to be ready to install thousands of new-generation centrifuges at the fortified underground plant, the diplomat said.
They could speed up the production of enriched uranium – required for both power generation and nuclear weapons.
The United Nations nuclear watchdog, the IAEA, has not commented.
