Russia's calls for providing security guarantees aimed at resolving Tehran's nuclear standoff have fallen on deaf ears in the White House.

"Security guarantees are not something we are looking at the moment," said White House spokesman Gordon Johndroe on Wednesday.

"As we've been saying, details (of the incentive package) are still being worked out and will be presented to the Iranian government soon. The one who needs to give security guarantees is Iran, because they keep threatening to wipe Israel off the map," he added.

Russian Foreign Minister Sergei Lavrov urged world powers on Tuesday to ensure Tehran's security in order to break the international deadlock over the Islamic Republic's uranium enrichment activities.

"I think the 'Six' could make the following step: directly put concrete offers on the negotiating table, give Iran security guarantees and ensure a more distinguished place in negotiations on the situation in the Middle East," Lavrov had said.

US reluctance to consider security guarantees for Iran is seen as an indication of Washington's double standard approach to the country's nuclear program.

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