![Russia's envoy to the nuclear talks in Vienna Mikhail Ulyanov. Photo: AFP](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/X33TZC3VGPQ6T36JJ56BV6BMWE.jpg?smart=true&auth=c8004fa5fe28ea24e9dbb8b53065be63b576cc4b42a5799b77f20944befb64b9&width=400&height=225)
Russia's envoy to the nuclear talks in Vienna Mikhail Ulyanov. Photo: AFP
Russia's envoy to the nuclear talks in Vienna Mikhail Ulyanov. Photo: AFP
Iran nuclear talks make progress but 'contentious issues' remain
Negotiators in Vienna are looking to expedite process to reach a new deal