June 8, 2015: International Atomic Energy Agency (IAEA) Director General Yukiya Amano leaves a news conference after a board of governors meeting at the IAEA headquarters in Vienna, Austria. (Reuters)

Iranian leaders prevented a top International Atomic Energy Agency (IAEA) official from disclosing to U.S. officials the nature of secret side deals with the Islamic Republic by threatening harm to him, according to regional reports.

Yukiya Amano, IAEA director general, purportedly remained silent about the nature of certain side deals during briefings with top U.S. officials because he feared such disclosures would lead to retaliation by Iran, according to the spokesman for Iran’s Atomic Energy Organization (AEOI).

Amano was in Washington recently to brief members of Congress and others about the recently inked nuclear accord. However, he did not discuss the nature of side deals with Iran that the United States is not permitted to know about.

Iran apparently threatened Amano in a letter meant to ensure he did not reveal specific information about the nature of nuclear inspections going forward, according to Iranian AEOI spokesman Behrouz Kamalvandi.

This disclosure has only boosted suspicions among some that the Iranians are willing and able to intimidate the top nuclear watchdog and potentially undermine the verification regime that Obama administration officials have dubbed a key component of the nuclear accord.

“In a letter to Yukiya Amano, we underlined that if the secrets of the agreement (roadmap between Iran and the IAEA) are revealed, we will lose our trust in the Agency; and despite the US Congress’s pressures, he didn’t give any information to them,” Kamalvandi was quoted as saying Monday during a meeting with Iranian lawmakers, according to Tehran’s state-controlled Fars News Agency.

“Had he done so, he himself would have been harmed,” the official added.

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