The UN has warned that Turkey could be held responsible for the actions of its allies, while Turkey has promised to investigate.
Bearded men shout “Allahu Akbar [God is the Greatest]”. One captures the scene on his smartphone and says: “We are mujahedeen [holy warriors] from Faylaq Al-Majd [Glory Corps] battalion.” In the background are the corpses of Kurdish fighters.
Further away, a group of men plant their feet on a woman’s bloodied body. One says she is a “whore”.
The gruesome footage is much like that produced by the ultra-violent Islamic State (IS) group.
Yet the men in this video are not IS militants, but rather fighters for a rebel alliance known as the Syrian National Army, trained, equipped and paid for by a Nato member, Turkey. They are under the command of the Turkish army.
The video was filmed on 21 October in northern Syria. The woman beneath the fighters’ feet is Amara Renas, a member of an all-woman unit of Kurdish fighters, the YPJ, a force that played a significant role in defeating IS in Syria.