HATAY, Turkey

The United Nations sent on Wednesday humanitarian aid for civilians in Idlib, a war-torn city in northwestern Syria.

The international organization sent 40 truckloads of supplies, which will be distributed among families in the city, as well as rural areas nearby.

The trucks entered Syria through the Cilvegozu border gate in Hatay, a southern Turkish province bordering Syria.

Turkey and Russia agreed in September 2018 to turn Idlib into a de-escalation zone where acts of aggression are expressly prohibited.

The Syrian regime and its allies, however, have consistently broken the terms of the cease-fire -- including a fresh cease-fire that started on Jan. 12 -- launching frequent attacks inside the zone and killing at least 1,800 civilians since the agreement.

More than 1.5 million Syrians have moved to areas near the Turkish border due to intense attacks over the last year.

Turkey remains the country with most refugees as it has hosted over 3.7 million migrants since the start of the civil war in Syria in 2011.