Iranian Foreign Minister Mohammad Javad Zarif talked to top Dutch and EU diplomats by phone to coordinate efforts for resolving a crisis that has gripped Syria for more than five years.
In a telephone conversation on Monday, Zarif and foreign minister of the Netherlands, Bert Koenders, discussed bilateral issues and the latest developments in war-torn Syria.
Separately, the top Iranian diplomat talked to European Union (EU) Foreign Policy Chief Federica Mogherini on the phone on Monday evening about the Syria crisis.
It came after a new round of diplomatic talks in the Swiss city of Lausanne, which was attended by nine nations, failed to break a deadlock on how to end fighting in Syria.
Syria has been gripped by civil war since March 2011 with various terrorist groups, including Daesh (also known as ISIS or ISIL), currently controlling parts of it.
Some 470,000 Syrians have been killed throughout the five years of bloodshed, 4.8 million have fled the country, and 6.6 million have become internally displaced by the violence.