VIENNA — Iran and six world powers hope to start drafting the text of a framework for a comprehensive nuclear accord on June 18 and to complete a framework by the end of the talks here within the week, Iran’s deputy foreign minister said June 17, as negotiations intensify even amid continued gaps on elements of a final deal.

Iran had both a bilateral meeting with the United States and a trilateral meeting with the United States and the European Union on June 17, an official at the talks told Al-Monitor.

The two sides have agreed that Iran will have enrichment and sanctions relief in a final deal, but need to agree on how much and on the details, Iran Deputy Foreign Minister Abbas Araghchi told Iranian journalists at the top of a press briefing here the evening of June 17, after an intense day of meetings among diplomats and experts.

Sanctions relief in a final deal will not come all at once, but will be step by step, based on measures taken by Iran, Araghchi told the Iranian journalists, echoing what US officials have previously said — that sanctions relief in a final deal will be step by step/reciprocal, as it has been in the six-month interim deal.