Mohammad Islami, the head of the Islamic Republic's Atomic Energy Organization, said in an interview with Rashtudi that Rafael Grossi, the director general of the International Atomic Energy Agency, provides information to the enemies of the Islamic Republic.
He also said that Donald Trump's threats to attack Mount Klang and other places are a sign of America's "desperation".
Islami said: "The fact that the president of the United States continues to threaten to attack Mount Klang and has previously threatened to attack other places in different ways is a clear sign of their desperation."
He added that these measures are an abuse of the authority of international institutions and casts doubt on their credibility.
Islami also said that these actions reveal the serious weakness of the UN Convention and the Treaty on the Non-Proliferation of Nuclear Weapons, NPT.