Imposing sanctions by the US on Iranian Supreme Leader and foreign minister means permanent closing of diplomatic channels, spokesman for the Iranian Foreign Ministry Abbas Mousavi tweeted.
"The US intends to destroy all the mechanisms protecting the peace and security in the world," he said.
"The useless sanctioning of Islamic Revolution Supreme Leader [Ayatollah Seyyed Ali Khamenei], and the commander of Iranian diplomacy means closing the doors of diplomacy by the US desperate administration," wrote Abbas Mousavi in a tweet on Tuesday.
"Trump's government is annihilating all the established international mechanisms for keeping peace and security in the world."
On June 25 US President Donald Trump said that the sanctions were imposed on Iran’s Supreme Leader Ayatollah Ali Khamenei to block the access to his financial resources.
According to the US president’s decree, the access to the financial resources of representatives of the supreme leader's office will be blocked.
The sanctions will be soon imposed on Iranian Foreign Minister Mohammad Javad Zarif and eight commanders of the Islamic Revolutionary Guard Corps.