Refugees of Turkey's "jihadist" auxiliaries conquering Aleppo with rebranded regional al-Qaeda have arrived at Qamişlo in the autonomous North and East Syria ("Rojava").
Apparently Russia's troops fled at Khan Shaykhun (https://en.wikipedia.org/wiki/Khan_Shaykhun). This about the same time as a rumor that the commander of Russia's forces in Syria had been fired (unconfirmed!), so that rumor could lead to desertion I suppose.