Envoys from UK, Germany, France, Russia, China and Iran met in Vienna to discuss how to save the Iran nuclear deal (historic 2015 pact).
Iran’s Deputy Foreign Minister Abbas Araghchi linked the tanker row to discussions over the nuclear deal, formally known as the Joint Comprehensive Plan of Action (JCPOA).
Araghchi said after the meeting ended “the atmosphere was constructive”.He added: “I cannot say that we resolved everything, but all the parties were still determined to save this deal”.
Tensions have soared since the United States withdrew from the 2015 accord last year and reimposed sanctions.
Iran has also admitted breaching restrictions on its production of enriched uranium, used to make reactor fuel but also potentially nuclear bombs.