ARCHIV - Iranische Atomwissenschaftler im Forschungszentrum der Uranumwandlungsanlage im Kernkraftwerk Isfahan (Aufnahme von 2005). Foto: Stringer/epa +++(c) dpa - Bildfunk+++

According to Russian negotiator Mikhail Ulyanov, there are positive developments in the talks on restoring the nuclear deal between Iran and six other countries. “It looks like we’re making progress,” wrote the ambassador to the international organizations in Vienna on Twitter on Sunday, without giving details.

There were still no signs of a breakthrough over the weekend, however, after negotiations in Vienna resumed on Thursday after a five-month hiatus. Ulyanov made it clear that Moscow supports the proposed agreement.

In the current round, diplomats from the United States, Iran and other countries such as Germany are trying to clarify final questions about an agreement to lift US sanctions and restrict Tehran’s nuclear program again – as was originally agreed in the 2015 pact to to prevent the construction of Iranian nuclear weapons. France, Great Britain and China are also part of the agreement.

Iran and its European negotiating partners had previously urged each other to compromise. Iran’s Foreign Minister Hussein Amirabdollahian had called on the US to show “a pragmatic response to Iran’s constructive proposals.”

“Iran must now decide whether it wants to conclude a solution while it is still possible,” said European representatives.

On Sunday, Tehran’s chief diplomat again spoke out against investigations by the International Atomic Energy Agency (IAEA) intended to clarify secret nuclear activities in the past.