Iran's foreign ministry is hailing the nation's talks with six world powers last week as a "national success."
Foreign Ministry Spokesman Hassan Qashqavi told reporters Monday that Iran resisted foreign pressure about its nuclear program during the meeting in Geneva last Thursday.
At that time, Iran agreed to meet with world powers in Vienna on October 19 and said it would allow inspections of its newly revealed nuclear facility near Qom.
United Nations nuclear chief Mohamed ElBaradei met with Iranian officials in Tehran Sunday and announced that inspection will take place October 25.
ElBaradei also said the International Atomic Energy Agency (IAEA) has no concrete proof that Tehran has an ongoing weapons program. However, he said it is still investigating allegations that Iran has studied nuclear weapons.
Iran says its nuclear program is peaceful.
The U.S. ambassador to the United Nations, Susan Rice, said Sunday that if Iran does not give up its alleged nuclear weapons program, it will face increased sanctions.