Iran accuses US of spying on its nuclear program

Iran has accused the United States of spying on its nuclear program, the state-run IRNA news agency reported Saturday. According to IRNA, Iranian Foreign Minister Manouchehr Mottaki said that Iran has protested the US's activity in a letter delivered to the Swiss embassy in Teheran. Mottaki said that the letter demanded "explanations over America's espionage on Iran's nuclear case."