The United States and Israel have asked Russia not to deliver the S-300 surface-to-air missile systems, RIA Novosti reported. The contract was originally signed in 2005, and the Russian Foreign Ministry says it will be fulfilled.
Russia and the other veto powers -- the United States, China, France and Britain -- sponsored the fourth-round sanctions. They passed the Security Council with Brazil and Turkey voting against them and Lebanon abstaining.
"Insofar as yesterday's resolution on Iran contains references to specific types of weapons, I can say that no anti-aircraft systems, except man-portable air-defense missile complexes, are included in the U.N. Register of Conventional Arms," Andrei Nesterenko, a foreign ministry spokesman, said.
Russian officials also say the country will continue to assist Iran in the construction of its first nuclear power plant.