"The UN Security Council's resolutions are mandatory to all countries. Russia is no exception here. Naturally, the (previously signed) contract for the delivery of S-300 missile systems to Tehran will be frozen," the Interfax news agency quoted a source as saying.

Turkish Prime Minister Recep Tayyip Erdogan on Thursday lashed out at the UN Security Council over imposing new sanctions on Iran in connection with its nuclear program.

Erdogan said that Turkey voted "no" to UN Security Council's sanctions against Iran, because Turkey, Iran and Brazil signed a nuclear swap deal.

"If we had not said 'no' to sanctions, we would have denied ourselves. It would be a dishonor. We would not want to participate in such a dishonor because history will not forgive us, " he said.

On Wednesday, Iranian President Mahmoud Ahmadinejad said the resolution against Iran "worth nothing," the semi-official ISNA news agency reported.

Iranian Foreign Minister Manouchehr Mottaki told the semi- official Fars news agency on Wednesday that the decision by the UN Security Council is "a move backward."