The so-called E3 - Britain, France and Germany - have warned they will invoke the United Nations snapback mechanism to reimpose international sanctions on the Islamic Republic. Reimposing international sanctions will only make the situation over Iran's nuclear issue more complex,

Iran's Deputy FM warned that reimposing global sanctions could hinder nuclear talks, ahead of a meeting with the E3 (UK, France, Germany). He rejected the legality of the "snapback" mechanism. Iran blames Europe for failing the 2015 deal.

Tehran blamed European powers on Monday for the failure of a landmark 2015 nuclear deal, accusing them of breaking commitments ahead of renewed talks in Istanbul with Britain, France and Germany."Iran holds the European parties responsible for negligence in implementing the agreement,