This photo shows the site of a car bomb explosion in front the offices in Syrian Kurdish town of Tal Abyad. AFP
Kurdish forces in northeastern Syria left several positions along the long border with Turkey on Thursday, complying with a deal that sees Damascus, Ankara and Moscow carve up their now-defunct autonomous region.
Russian forces have started patrols along the flashpoint border, filling the vacuum left by a US troop withdrawal that effectively handed back a third of the country to the Moscow-backed regime of President Bashar Al Assad.
US President Donald Trump has praised the agreement reached in Sochi by Turkey and Russia and rejoiced that US personnel were leaving the "long blood-stained sand" of Syria, leaving just a residual contingent behind "where they have the oil".
The deal signed in the Black Sea resort by Syria's two main foreign brokers gives Kurdish forces until Tuesday to withdraw to a line 30 kilometres (19 miles) from the border.
The Syrian Observatory for Human Rights reported that the Kurdish-led Syrian Democratic Forces had pulled out of some areas at the eastern end of the border on Thursday.
"The SDF have withdrawn from positions between Derbasiyeh and Amuda in the Hasakeh countryside," Britain-based war monitor's head, Rami Abdel Rahman, said.
Fighters of the Kurdish People's Protection Units (YPG) — the main component of the SDF — remained in many positions along the 440 kilometre (275 mile) border, he added.
The Observatory also reported clashes near the town of Tal Tamr between SDF fighters and some of the Syrian former rebels paid by Turkey to fight ground battles.
Russian and Syrian government forces were deploying across the Kurdish heartland where they are tasked with assisting "the removal of YPG elements and their weapons".
Kurdish forces had already vacated a 120-kilometre segment of the border strip -- an Arab-majority area between the towns of Ras Al Ain and Tal Abyad.
The SDF withdrawal from that area came after Turkey and its Syrian proxies launched their deadly cross-border offensive on October 9.
Turkish President Recep Tayyip Erdogan, who is embattled on the domestic political front, hopes to use the pocket to resettle at least half of the 3.6 million Syrian refugees his country hosts.
Under the Sochi deal, the area will remain under the full control of Turkey, unlike the rest of the projected buffer zone which will eventually be jointly patrolled by Turkey and Russia.
Some 300,000 people have fled their homes since the start of the Turkish offensive and the Kurds among them seem unlikely to return.
US forces pulled back from the border area earlier this month, in a move the Kurds saw as a betrayal but which Trump had announced last year.
The autonomous Kurdish administration in Syria had hoped that the sacrifices made in the name of the international community to help crush the Daesh group's "caliphate" would pay off.
But Trump has been keen to keep a promise to remove his troops from Syria, where IS's "caliphate" was eliminated in March but where conflict continues.
"Let someone else fight over this long blood-stained sand," he said in a White House speech on Wednesday.
The attack north of Hama city adds to pressures on Russian-Turkish agreements that have contained the war in northwestern Syria, the last major foothold of the insurgency against President Bashar Al Assad.
A five-day pause in Turkey's cross-border military offensive to allow the withdrawal of Kurdish YPG fighters from the border area expires at 10 pm (1900 GMT) on Tuesday.
The Kremlin said on Wednesday that the United States had betrayed and abandoned the Syrian Kurds and advised the Kurds to withdraw from the Syrian border as per a deal between Moscow and Ankara
US President Donald Trump on Monday demanded Turkey stop its military incursion in Syria and imposed new sanctions on the NATO ally as Trump scrambled to limit the damage from his much-criticized decision to clear US troops from Turkey’s path.
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