Chief of European Union Foreign Policy Enrique Mora is trading once again to Tehran to hold meetings on nuclear talks between the US, other Western powers, Russia and Iran, reported Reuters. Mora said he is to work on closing the remaining gaps as negotiations continue. 

Talks, which are aimed at returning both the US and Iran to compliance with the 2015 JCPOA nuclear deal and removing sanctions on the Iranian economy (including on its oil exports), have been stagnant now for months.