The reason behind the withdrawal is still vague, said the Observatory, citing one fighter as saying that his comrades "have been pulled out of Syria to join jihadists in Mali."
The Observatory said the fighters pulled out from Syria's northwestern province of Idlib, a main hotspot in Syria's long- standing conflict.
The Syrian government has for long accused Turkey of making its lands as routes for the foreign radical fighters in order to fight against the Syrian administration. Meantime, the Syrian air force shelled the town of Kureen in Idlib earlier in the day, said the Observatory....
In the Kurdish-dominated district of Ashrafieh, clashes erupted earlier in the day between rebel fighters and Kurdish local committees, the Observatory continued...."