Turkey has suggested it will stop preventing migrants from crossing through en route to Europe, which would be in breach of a pact made with the bloc in 2106.
Turkey says it will not back down in a stand-off with Russia over the northern Syrian region of Idlib.
"Idlib is about to be the most catastrophic humanitarian situation in history," a Syrian White Helmets volunteer told Euronews.
The EU could pursue a track focused on mutual economic benefits, creating attractive trade incentive programs in exchange for Turkey continuing its difficult task. Direct aid is helpful, but perhaps the most sustainable and realistic approach is for Europe to set a new higher mutual trade volume.
The UN human rights office wants safe corridors for civilians trying to flee fighting in Syria's northwest and who 'no longer have anywhere to go'.
The Kremlin hit back at Ankara, accusing it of disregarding its commitment under the agreement to stabilise the region.
Weeks of intensive aerial bombardment has sent huge numbers fleeing northwards closer to the Turkish border.
Turkey's foreign minister says Ankara and Moscow are working to keep peace efforts for Syria alive despite a deadly clash between Turkish and Syrian forces
Hundreds of Syrians in Turkey gathered outside the Russian consulate in Istanbul on Saturday to protest about Russian backed Syrian government offensive in the Idlib province. The bombardments have caused 230,000 people to be displaced in just two weeks.
Government forces have been bombarding southern and eastern Idlib province, the last rebel stronghold in the war-torn country, since late November.
At least eight people, including five children, were on Christmas Eve in Russian airstrikes in northwest Syria.
"Turkey cannot handle a new refugee wave from Syria," Erdogan said, adding that 80,000 people from Syria's Idlib had fled toward the Turkish border.
Video purportedly shows aftermath of US raid targeting al-Baghdadi
The "aggressive" move would not affect "the determination of the Syrian Arab Army to keep hunting the remnants of terrorists", state news agency SANA cited a Foreign Ministry source as saying.
Government and Russian air strikes killed seven people in the northwest of Syria on Tuesday, war monitor the Syrian Observatory for Human Rights (SOHR) reported.
Members of the Syrian Civil Defence in Idlib province demonstrated on Tuesday against the targeting of their facilities and volunteers by Syrian forces and their allies.
Russian President Vladimir Putin announced during a meeting with Turkish President Recep Tayyip Erdogan the creation of a "buffer zone" in Syria's Idlib province. It will be a demilitarized area in between Syrian government forces and rebel forces during the looming battle for the territory.
Idlib residents are said to be preparing themselves ahead of expected offensives on the Syrian city, with one man making gas masks from whatever he can get his hands on — charcoal, cotton, party cups and plastic bags.
Russian and Syrian warplanes have kept up their assault on Idlib after a summit failed to agree on a ceasefire.
After days of shelling and bombing in Syria’s Idlib province, Bashar al-Assad’s forces are amassing on the frontlines of the conflict– and time is running out for civilians to leave the area.
Why is the fight for Idlib so significant, what are the likely outcomes, and could it really be the last battle of the Syrian conflict? Euronews spoke to experts to find out.
Euronews brings you the latest news and updates as they happen this morning.
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