Airstrikes on a refugee camp housing Syrians uprooted by war killed 28 people near the Turkish border on Thursday, a UK-based monitoring group said, according to Guardian.
The Syrian Observatory for Human Rights said the dead included women and children, and that the toll from the strikes, which hit a camp for internally displaced people near the town of Sarmada, was likely to rise.
Sarmada lies about 20 miles (30km) west of of Aleppo, where a cessation of hostilities brokered by Russia and the US brought a measure of relief on Thursday. But fighting continued nearby and President Bashar al-Assad said he still sought total victory over rebels in Syria.
Syrian state media said the army would abide by a "regime of calm" in the city that came into effect at 1am (22:00 GMT on Wednesday) for 48 hours, after two weeks of death and destruction.