Russian President Vladimir Putin and Iranian President Ebrahim Raisi held a phone call Wednesday, the Kremlin said.
The two discussed the need to continue diplomatic efforts and reach an agreement on reviving the 2015 Iran nuclear deal.
The Kremlin said the two sides expressed a desire to further strengthen Russian-Iranian relations.
In addition, President Putin expressed his condolences on the recent train accident outside the city of Tabas in Iran early Wednesday, Russian state media RIA cited the Kremlin.