IRNA - A prominent law expert from Geneva's Graduate Institute of International and Development Studies in a message slammed the US officials' misunderstanding of the diplomatic freedom.

'Brian Hook [American lawyer and government official] says being out of the #JCPOA has given US a great deal of 'diplomatic freedom'. 'Diplomatic freedom' is a new term to describe acting outside Int'l law. Like #Saudi also enjoys its 'diplomatic freedom' when it bombs school buses, disregarding all laws of war in #Yemen,' Reza Nasri tweeted on Friday.

Earlier Iranian Foreign Minister Mohammad Javad Zarif in a message emphasized viability of ending war in Yemen.

�I said this on the crisis in Yemen in April 2015. Today, after untold human suffering & war crimes by the Saudi coalition & its US accomplices, & efforts to whitewash their crimes with absurd allegations against Iran, our four-point plan still remains the only viable option,' Zarif tweeted on Friday.

Saudi Arabia and a number of its regional allies launched a devastating military campaign against Yemen in March 2015, with the aim of bringing the government of Mansour Hadi back to power and crushing the country�s Houthi Ansarullah Movement.

Some 16,000 Yemenis have been killed and thousands more injured since the onset of the Saudi-led aggression.

The assaults of the Saudi-led coalition forces have failed to stop the Yemenis from resisting the aggression.