MOSCOW, September 29 (RIA Novosti) - Iran"s...

Tehran revealed last week that it was building a second uranium enrichment plant.

Rogozin said Russia needs to look at using its political influence on the Iranian leadership as tougher measures could provoke an arms race in the region.

Iran is under three sets of UN Security Council sanctions over its refusal to halt uranium enrichment that could be used both for electricity generation and weapons production. Iran insists its nuclear program is aimed at generating peaceful civilian energy.