Iran is speeding up its nuclear program, announcing that it's installing more advanced centrifuges to enrich uranium.
"The installation of new centrifuges with better quality and speed is ongoing," Ramin Mehmanparast, Iranian foreign ministry spokesman, told reporters Tuesday.
Tehran said the International Atomic Energy Agency is supervising the process.
"They are fully aware that Iran's peaceful nuclear activity continues to progress. This is another confirmation of the Islamic republic's successful strides in its nuclear activities," Mehmanparast said.
France, however, quickly condemned the move, saying Iran's nuclear activities don't have any real benefits for civilians.
"This is yet another violation of the six Security Council resolutions and the 10 IAEA boards of governors resolutions," a French foreign ministry official said.
Britain also spoke out against Iran's latest move.
"(Tuesday's announcement) further undermines Iran's claim that its nuclear program is designed for purely peaceful purposes and demonstrates the urgency of increasing pressure on Iran," the British Foreign Office said.
"Iran must understand that we will not be distracted by events in the region and it should not doubt our resolve," British officials warned.
Meanwhile, a U.S. official told the Financial Times that Washington has been closely monitoring the Islamic Republic for signs they would build a new nuclear plant.
"Based on their track record, it's logical that they would try to build another clandestine enrichment facility," the official said.