The Iranian president defended his government's actions as the head of the U.N.'s nuclear monitoring agency, Mohamed ElBaradei, arrived Saturday to arrange an inspection of the uranium enrichment facility near the holy city of Qom.
The revelation that Iran has been building a new nuclear plant has heightened the concern of the U.S. and many of its allies, which suspect Tehran is using a civilian nuclear program as a cover for developing a weapons-making capability. Iran denies such a claim, saying it only wants to generate energy.
Obama and the leaders of France and Britain accused Iran of keeping the construction hidden from the world for years. President Obama said last month that Iran's actions "raised grave doubts" about its promise to use nuclear technology for peaceful purposes only.
ElBaradei, the head of the International Atomic Energy Agency, has also said Tehran was "on the wrong side of the law" over the new plant and should have revealed its plans as soon as it decided to build the facility.