European Union foreign policy official Enrique Mora and Iran’s chief nuclear negotiator Ali Bagheri-Kani held meetings in Qatar.

Bagheri-Kani confirmed his meeting in a tweet on Wednesday, claiming the two had a “serious and constructive” meeting.

“We exchanged views and discussed a range of issues including negotiations on sanctions lifting,” added the Iranian diplomat.

Mora also confirmed the negotiations saying they were on “a range of difficult bilateral, regional, and international issues, including the way forward on the JCPOA.”

Iran’s foreign minister Hossein Amir-Abdollahian arrived with a delegation possibly including Bagheri-Kani who is also deputy foreign minister in Doha Monday evening and held talks with Qatari officials on Tuesday, in what many believed to be related to issues pertaining to disputes with the United States.

In recent weeks there have been a flurry of reports about direct and indirect talks between Washington and Tehran on the nuclear issue, Americans held hostage in Iran and possibly Iran’s military cooperation with Russia.

Some reports suggest that the US intends to reach an unwritten interim nuclear deal, whereby it offers sanctions relief to Iran in exchange for a freeze on uranium enrichment at 60 percent.