Iran has submitted a letter to the United Nations in which it questions the "intent" of Washington's new nuclear policy and says it contains threats of nuclear attack against Iran.
The official IRNA news agency says the letter was delivered by Iran's envoy to the UN, Mohammad Khazai.
Last week Washington unveiled its reviewed nuclear policy, which limits its use of nuclear arsenal but singles out Iran and North Korea as exceptions reportedly for flouting UN Security Council resolutions.
Iran's letter says UN members "should not tolerate or ignore such nuclear blackmail in the 21st century."
compiled from agency reports