Raqqa was captured two years ago by US troops and their YPG/PKK allies but since US President Trump abruptly ordered a pull-out in October, Moscow has swiftly advanced into that territory.
The air raids in the militant-run northwestern region of Idlib also wounded several others, the Syrian Observatory for Human Rights says.
As the Syrian war draws to a close, many short films and documentaries are making sure what Syrians went through over the last nine years isn't forgotten.
Ties between the two states have repaired themselves quickly after Abu Dhabi’s brief flirtation with the Syrian revolution.
At least 96 fighters have been killed over 48 hours in Idlib during clashes between the two sides, a war monitor said. Meanwhile, Russian air strikes killed at least 14 civilians in Maarat al Numan and Saraqib.
"A total of eight vehicles comprising of four from each side participated in the 12th joint land patrol along with UAVs in the Qamishli-Derek sector," Turkey''s National Defence Ministry says.
A humanitarian catastrophe is looming in Idlib, as air strikes target hospitals in the last rebel stronghold with Russian and Syrian regime pressing for a final showdown.
Turkey's defence ministry says PKK/YPG attack in the village of Tal Halef, near the city of Ras al Ayn, also wounded more than 20 people.
Inspectors from the Organization for the Prohibition of Chemical Weapons concluded in a report released that a toxic chemical containing chlorine was used in last year's attack in Douma.
Unmanned aerial vehicles supported the Turkish and Russian units in the joint patrol under a deal agreed between the two countries on October 22.
The first joint ground patrols took place on November 1 near the Ras Al Ayn and Qamishli regions east of the Euphrates River as part of a deal reached between Ankara and Moscow in October.
The attack comes after Turkey reached two separate deals last month with the US and Russia to pause its anti-terror operation in northern Syria to allow YPG/PKK terrorists to withdraw from a planned safe zone.
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