The Iranian envoy to the International Atomic Energy Agency says Tehran will never stop enriching uranium. Ali Asgar Soltani made the statement on the eve of the latest round of talks on Iran's nuclear program. The envoy says his country's atomic program is now completely self-sufficient, and enrichment will continue even if Iran comes under military attack. The country is already suffering four sets of UN sanctions. Iran is currently sitting down for closed talks with six world powers in Istanbul. Ali Asgar Soltani told RT, Tehran shouldn't have to bear any international pressure in the first place.