Russia said yesterday it was up to Washington to take the first steps if US President Joe Biden wants to salvage the landmark Iran nuclear deal.

Foreign Minister Sergei Lavrov urged Washington to lift sanctions on Tehran and save the historic agreement during his first talks with his Iranian counterpart since Biden's election victory raised hopes for the fate of the deal.

Lavrov said that Russia and Iran "share the same position" on the preservation of the 2015 accord, urging the United States to lift sanctions as a condition for Iran's return to compliance.

"This in turn will provide the preconditions for the implementation of all requirements of the nuclear deal by the Islamic Republic of Iran," he told journalists.

The talks in Moscow came days after Iranian Foreign Minister Mohammad Javad Zarif urged the United States to make the "fundamental choice" to end its sanctions regime and reverse the "failed policies" of the previous White House administration, which took a hawkish position on Tehran.

He cautioned that any efforts by Washington to extract additional concessions would ultimately end in failure.

"Iran wants the nuclear deal it made," Zarif wrote in an op-ed in the US foreign policy magazine Foreign Affairs last week.

He reiterated Iran's position while in the Russian capital yesterday, saying that if Washington cancels its penalties on Tehran, then Iran will not restrict the work of inspectors and return to its obligations under the accord.

"We will resume their complete implementation," Zarif said.