Iran is about to acquire the capability to make nuclear weapons, Russian President Dmitry Medvedev warned on Monday.

He urged Russian ambassadors and permanent representatives to move away from "simplistic approaches" toward Iran's nuclear problem.

He reiterated Russia's positions that sanctions "are not producing the desired results" but admitted that Iran "is behaving in a far from the best manner."

"We are consistently urging Tehran to show essential openness and cooperation with the IAEA," Medvedev said.

MOSCOW, July 12 (RIA Novosti)