The European Union expects an agreement will be reached at the next round of nuclear talks between the United States and Iran, but it's unclear if that will happen.
The US and Iran have been holding indirect talks intermittently in Vienna since early April, through the EU and other mediators, with the hope of reviving the 2015 nuclear deal.
Top negotiators from parties to the deal agreed on Wednesday to resume discussions next week after updating their governments on the talks.
Chief EU negotiator Enrique Mora told reporters after the meeting he is sure "the next round will be the one in which we will finally get a deal."
Mora added, "It's a complex process with political decisions," and they are now at a point in which they "have to face the hard decisions."
The US and Iran remain apart on several issues, including the extent to which Washington would lift sanctions.
Iran's foreign ministry has admitted there are a number of issues that have yet to be settled.
US State Department Principal Deputy Spokesperson Jalina Porter was asked at a press briefing whether there would be an agreement soon.
She said there is nothing to announce regarding the nuclear talks.