Turkey started joint patrols with Russia in northern Syria Friday to verify whether Kurdish forces have withdrawn from a key border zone in compliance with a deal reached between Ankara and Moscow.

A convoy of Russian and Turkish military vehicles snakes its way along the Syrian side of border in the first joint patrol of a buffer zone set up under an agreement struck by Ankara and Moscow last week
A convoy of Russian and Turkish military vehicles snakes its way along the Syrian side of border in the first joint patrol of a buffer zone set up under an agreement struck by Ankara and Moscow last week AFP / ILYAS AKENGIN

It follows an agreement they signed in the Black Sea resort of Sochi last week which gave Kurdish forces 150 hours to withdraw from a band of territory along Syria's border with Turkey, in a process that Russia said was now complete.

The patrols add to the complicated mix of forces operating along the frontier, including US troops who inspected an eastern section on Thursday for the first time since US President Donald Trump said last month his country was withdrawing.

Turkish troops and Russian military police make final preparations for their joint patrol of the new 10 kilometre (six mile) deep buffer zone on the Syrian side of the border
Turkish troops and Russian military police make final preparations for their joint patrol of the new 10 kilometre (six mile) deep buffer zone on the Syrian side of the border TURKISH ARMY / HANDOUT

They began on Friday near the border town of Derbasiyeh -- from which Kurdish fighters have already pulled out -- and lasted around four hours, an AFP correspondent on the Turkish side of the border reported.

Map of northeastern Syria, showing areas controlled or patrolled by Turkish, Russian, Syrian regime or US forces, with events on Oct 29 and 31.
Map of northeastern Syria, showing areas controlled or patrolled by Turkish, Russian, Syrian regime or US forces, with events on Oct 29 and 31. AFP /

The soldiers had headed to the east of Derbasiyeh in a convoy of Turkish and Russian military vehicles to patrol a strip of territory several dozen kilometres long, according to Turkish military sources.

The Russian army said in a statement that the convoy consisted of nine vehicles, protected by an armoured personnel carrier, covering more than 110 kilometres (68 miles).

Damascus forces are deploying in much of the formerly Kurish-controlled zone along the border with Turkey but a 10-kilometre-deep strip is to be jointly patrolled by Russian and Turkish troops
Damascus forces are deploying in much of the formerly Kurish-controlled zone along the border with Turkey but a 10-kilometre-deep strip is to be jointly patrolled by Russian and Turkish troops AFP / Fadel SENNA

Turkey intends to set up a "safe zone" 30 kilometres deep, in which some of the 3.6 million Syrian refugees it is hosting could be resettled.

On Thursday, a US convoy added to the confusion of flags being flown by troops along the Syrian border, conducting a patrol of a section near the town of Qahtaniyah from which American forces had pulled back last month
On Thursday, a US convoy added to the confusion of flags being flown by troops along the Syrian border, conducting a patrol of a section near the town of Qahtaniyah from which American forces had pulled back last month AFP / Delil SOULEIMAN

United Nations Secretary General Antonio Guterres said he would "consider the proposal", stressing the need for the "voluntary, safe and dignified" return of refugees, during a visit to Istanbul on Friday where he met with President Recep Tayyip Erdogan.

Temporary deal

Last week's Sochi agreement between Ankara and Moscow halted a Turkish operation launched against Kurdish forces in northeastern Syria on October 9, which left hundreds dead and prompted tens of thousands to flee their homes.

Turkish and Russian military vehicles carry out a joint patrol in the Syrian town of Derbasiyeh
Turkish and Russian military vehicles carry out a joint patrol in the Syrian town of Derbasiyeh AFP / Delil SOULEIMAN

Under the deal, Turkey is to assume control over one 120 kilometre (75 mile) wide section in the centre of the border, while Syrian government forces are to deploy to the east and west.

Along the whole length of the border, a 10-kilometre deep buffer zone is to be created on the Syrian side which will be jointly patrolled by Russian and Turkish troops.

AFPTV / Gihad Darwish

The Kurds spearheaded a US-backed military campaign against the Islamic State group that deprived the jihadists' of their final sliver of Syrian territory in March this year but Ankara views the Kurdish forces as "terrorists".

Abandoned by their ally Washington -- which early last month pulled its own troops back from the border area, effectively allowing Turkey to attack -- the Kurds turned to Damascus which swiftly deployed its forces, reclaiming swathes of territory it lost as long ago as 2012.

President Bashar al-Assad said Thursday the Sochi agreement was "temporary," and will eventually pave the way for his government to retake Syria's northeast.

UN Syria envoy Geir Pedersen on Friday voiced hope over talks in Geneva between the Syrian government, opposition and civil society.

Pedersen said he was "very impressed" that the sides were meeting at all to discuss amending the country's constitution ahead of possible elections as part of a UN peace plan.

Crowded border

Nearly 100 kilometres (around 60 miles) from the site of the joint patrols in Derbasiyeh, a convoy of five US armoured vehicles was seen patrolling on Thursday in a zone north of the town of Qahtaniyah.

The Britain-based Syrian Observatory for Human Rights said it was part of an eastern stretch of the border where US forces are seeking to maintain a presence.

"They want to prevent Russia and the regime from reaching parts of the border that lie east of the city of Qamishli," the de facto capital of Syria's Kurdish minority, Observatory head Rami Abdul Rahman said.

A spokesman for the US-led coalition said its forces are transiting on routes near the border as Washington "withdraws troops from northern Syria and repositions some troops to the Deir Ezzor region," near the border with Iraq.

Trump last month said a "small number" of US troops would stay to "secure the oil".