Around 2,000 other migrants reached the Turkish border with Greece on Sunday after Turkey opened its gates to Europe and said it could no longer cope with refugees from war-torn Syria.
Since last week's dozen Turkish troops were killed in northwestern Syria, Turkish President Recep Tayyip Erdogan has launched reprisals against the Syrian regime's armed forces and increased pressure on Europe because of the conflict.
Around 2,000 people, including women and children, arrived from Istanbul on Sunday morning and walked through a field to the Pazarkule border gate, an AFP correspondent said. The group included Afghans, Syrians and Iraqis.
Thousands of people who were already at the border had spent the night in very cold temperatures and lit fires to warm up, the correspondent added.
A small group of migrants threw stones at a Greek police car on the other side of the border, where skirmishes had occurred the day before when the Greeks refused to let them cross.
Turkish Interior Minister Suleyman Soylu said on Twitter that 76,358 migrants had left Turkey via the province of Edirne, where Pazarkule is located, by Sunday morning.
Edirne in northwestern Turkey borders Greece and Bulgaria. AFP was unable to immediately review Soylu's allegation.
The International Organization for Migration (IOM) announced late Saturday that around 13,000 migrants have gathered along the Turkish-Greek border.
Turkey is home to around 3.6 million Syrian refugees, and the number of Afghans entering Turkey has increased in recent years.
According to official figures, more than 200,000 Afghans were caught in Turkey in 2019, twice as many as in 2018, more than 100,000.
The Turkish president said on Saturday that Turkey "opened the doors" and did not plan to close them because "the European Union should keep its promises".
He referred to the 2016 agreement with Brussels to stop the flow of refugees in exchange for billions of euros.
The head of the European Commission, Ursula von der Leyen, said on Saturday that the EU is watching "with concern" and is ready to use its border protection agency Frontex to respond.
Ankara is trying to pressure Western governments to support Turkey in Syria after 34 Turkish troops were killed in the Idlib region of northern Syria since Thursday.
The Turkish armed forces retaliated and continued to take positions of the Syrian regime this weekend after Erdogan warned Damascus to pay "a price" for his aggression.
(Except for the headline, this story was not edited by NDTV staff and published from a syndicated feed.)