The top Iranian diplomat is scheduled to hold talks with President Bashar al-Assad and Prime Minister Imad Khamis on bilateral relations and the latest developments in Syria, the agency said.
U.S. President Donald Trump delivers remarks before signing an executive order on strengthening retirement security in America at Harris Conference Center in Charlotte, NC, U.S., August 31, 2018. Tens of thousands of people fled to Idlib after surrendering in government offensives elsewhere, choosing to relocate to an opposition-held area rather than risk reprisals or forced conscription at the hands of the government. "Don't let that happen!" Trump tweeted on Monday night.
"The 3 million Syrians, who have already been forced out of their homes and are now in #Idlib, will suffer from this aggression", he continued.
U.S. Ambassador to the United Nations Nikki HaleyNimrata (Nikki) HaleyPalestinian leader: USA canceling funding for Palestinian refugees "strengthens terrorism" Trump administration to stop funding for UN Palestinian refugee program Trump plans to cancel funding for UN Palestinian refugee program: report MORE also warned against an attack, writing in a tweet: "All eyes on the actions of Assad, Russia, and Iran in Idlib".
FILE PHOTO:A general view taken with a drone shows the Clock Tower of the rebel-held Idlib city, Syria June 8, 2017.
The U.S. and France have warned an Idlib offensive would trigger a humanitarian crisis and warned that a chemical attack in Idlib would prompt a western retaliation.
Russian Federation and Iran have insisted that extremist groups in Idlib must be defeated and are expected to back regime forces in any assault.
Zarif spoke about Idlib at the start of his visit for talks about a September 7 meeting between Iran, Turkey and Russian Federation on confronting militants in Idlib, Iranian state media reported.
Zarif's visit comes ahead of a planned trilateral meeting Friday between the presidents of Iran, Russia, and Turkey in Tehran to discuss the situation in Syria.
Russian Federation and Iran, which support Assad, and Turkey have been in close cooperation over Syria in order to find a solution to the conflict.