UN sanctions in December 2006 blocked the import and export from Iran of “sensitive nuclear materials and equipment” and told Iran to “without further delay, suspend the following proliferation sensitive nuclear activities: all enrichment-related and reprocessing activities, including research and development; and work on all heavy-water related projects, including the construction of a research reactor moderated by heavy water.” It gave Iran a 60-day deadline, which was ignored.
The European Union has imposed visa bans on several Iranian senior officials, including several nuclear experts.
