![Exterior view of the 'Grand Hotel Wien' in Vienna, Austria, Friday, April 9, 2021 where closed-door nuclear talks with Iran take place. Diplomats meeting in Vienna assess progress of three days of talks aimed at bringing the United States back into the nuclear deal with Iran. (AP Photo/Florian Schroetter)](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/JMR4A3JAK44I5JQ5E34Y676YXI.jpg?smart=true&auth=2261d04e8262a106ecedc3a609309a296930bbff8e6e320c98db87abd6fb52e7&width=400&height=225)
Iran is holding talks with world powers at a Vienna hotel. AP
Iran is holding talks with world powers at a Vienna hotel. AP
'Positive momentum' in Iran nuclear talks as first week of discussions ends
Efforts to restore US to nuclear deal will continue next week