A senior Iranian nuclear official says the country has installed 1,000 centrifuges of the second generation.
"We have put in 1,000 centrifuges of the second generation (IR-2m), but we have not injected the UF6 gas into them given the ongoing nuclear talks," said Head of the Atomic Energy Organization of Iran (AEOI) Ali Akbar Salehi, PressTV reported .
He said Iran is currently building first-generation centrifuges and has installed centrifuges of the second generation, but the third and fourth generation ones are undergoing tests.
Iran will not install any more second-generation centrifuges as it needs enough space and infrastructure, he noted.
"There is nothing impossible for Iran in producing new-generation centrifuges and we have fully mastered the job," he stressed.
Last week, Salehi said that there are currently 19,000 centrifuges in Iran, adding "a new generation of centrifuges is being built, but they should undergo all tests before mass production."
Iran and the five permanent members of the UN Security Council - Britain, China, France, Russia and the United States - plus Germany sealed an interim agreement in Geneva on November 24 to set the stage for the full resolution of the decade-old dispute with Tehran over its nuclear energy program.
Under the Geneva deal, the six countries undertook to provide Iran with some sanctions relief in exchange for Tehran agreeing to limit certain aspects of its nuclear activities during a six-month period. Iran has agreed not to bring new centrifuges into operation for six months as part of the deal.