MNA � Iranian Foreign Ministry Spokesman Abbas Mousavi has denounced the latest case of US's economic terrorism against Russia.

"The Americans' insanity in extreme use of economic terrorism and unlawful and unilateral punishments against countries that do not think and behave like them is a failed trick that has lost its efficiency and will definitely have no result for that country," Mousavi said Friday according to the Foreign Ministry website.

Also, in a Friday tweet, Foreign Minister Zarif condemned the US's 'serial bouts of economic terrorism', noting that US Secretary of State Mike Pompeo's "paranoia about 'Great Powers' is becoming a true phobia. Wake up: The era of "Great Powers" is long past."

According to a senior Trump administration official, US President Donald Trump has signed an executive order that envisages new sanctions on Russia over the alleged nerve agent attack in Salisbury in 2018.

The Russian Foreign Ministry stated it wasn't surprised by the new sanctions Washington imposed on Moscow over the Skripal case, adding that Russia regrets that Washington is sacrificing ties between the two countries because of this issue, Sputnik reported.

In March 2018, former Russian intel officer Sergei Skripal and his daughter Yulia were found unconscious on a bench at a shopping center in Salisbury, UK.

Before an investigation into the incident had even been launched, the British authorities immediately claimed they had been subjected to poisoning by a military-grade nerve agent known as "Novichok" and that Moscow was "highly likely" behind the assault.

The UK, the US, and some of their allies introduced sanctions against Moscow and expelled dozens of Russian diplomats from their respective countries.

Later, the Porton Down laboratory, located near the site of the incident, was unable to confirm that the substance used in the attack was produced in Russia. Moscow, in turn, stressed it has never created, stored, or used toxic chemicals known under the name Novichok, calling the media claims about this "a hoax".

Russia also stated that the British authorities had rejected Moscow's offer to help with the investigation. London also refused to publish any evidence, or provide access to the Skripals, who are hidden in an unknown location.