Russia's Defence Ministry said on Sunday its warplanes bombed militants who had fired chlorine gas at Aleppo late Saturday. Syrian state news agency SANA said on Sunday that 107 people were injured, including children, after militants hit three districts of Aleppo with projectiles containing gases that caused choking.

According to the Russian ministry, the Turkish state, guarantor for the jihadist mercenaries, was informed about the airstrike in advance.

The Russian bombardment on Idlib is the first of its kind since the deal made with Turkey on September 17 on demilitarized zone.

The Syrian Observatory for Human Rights (SOHR) also confirmed Russian aerial bombardment on Idlib for the first time since the Russia-Turkey deal. Accordingly, the strikes targeted al-Rashideen and Han Toman regions, while Syrian regime forces conducted artillery attacks in the west and northwest of Aleppo.