TEHRAN/MOSCOW, February 14 (RIA Novosti) - An Iranian delegation will arrive in Moscow on February 20 for nuclear talks, Javad Vaeedi, a senior Iranian security official, said Tuesday.

Tehran had announced Monday that it was postponing talks, which had been scheduled to take place on February 16.

Mikhail Kamynin, the Russian Foreign Ministry's official spokesman, confirmed that Iran had asked Russia for the talks to be postponed, due to technical reasons.

"The Russian side is currently discussing the acceptability of this date via working channels," he said.

Vaeedi also said that having received an order from President Mahmoud Ahmadinejad, work would now resume at Iran's uranium enrichment facility in Natanz.

The United States, Israel and members of the European Union have repeatedly accused Iran of seeking to build nuclear weapons under the cover of a peaceful nuclear program. Iran denies this, insisting that its program's only aim is generation of electrical power.

In a bid to allay Western nations' concerns that Iran may use enriched uranium to produce a nuclear bomb, Russia proposed taking Iranian uranium for enrichment on its soil and then returning it for electricity generation at the Russian-built Bushehr power station.

The Russian offer has been seen as a compromise in the standoff between the Islamic Republic and the West. It could remove the need for Iran to enrich uranium, which is the process that has aroused international concerns as it can be used to create nuclear weapons.

Iranian Foreign Minister Manouchehr Mottaki said Russia's offer remained on Iran's agenda. "The Iranian leadership paid serious attention to Russia's proposal to enrich uranium on its territory. Talks with the Russian side remain on the agenda."