The UN on Thursday sent 16 truckloads of humanitarian aid to Idlib, northwestern Syria, where millions of people need assistance due to the worsening internal conflict.
Idlib falls within a de-escalation zone forged under an agreement between Turkey and Russia.
The area has been the subject of multiple cease-fire understandings, which have frequently been violated by the Assad regime and its allies.
The influx of displaced civilians has increased its population to about 4 million in recent years.