Turkish President Recep Tayyip Erdoğan calls a Turkish intervention in Syria's Idlib Governorate "imminent" after talks with Russia fail to reach what he describes as their "desired result". Erdoğan threatens to launch an operation in Idlib by the end of the month. Kremlin Press Secretary Dmitry Peskov calls Turkish involvement in the battle "the worst scenario". The countries support opposing sides in the war.
A Syrian Air Force helicopter is shot down by a surface-to-air missile over the Aleppo countryside, killing both pilots. It is the second Syrian helicopter to be shot down this week by Turkish-backed forces.
The Syrian Army, backed by Russian Air Force support, enters the largely deserted city of Ma'arrat al-Nu'man in the northern Idlib Governorate. Only light resistance is reported as most rebel groups, including Hayat Tahrir al-Sham, withdrew their fighters. The city had been under rebel control since October 2012.
Syrian Air Force warplanes repeatedly strike a Turkish military convoy driving through the rebel-held region of Idlib, reportedly causing several casualties and forcing it to stop. Turkey claims the convoy was aiming to supply observation posts, while Syria accuses it of carrying weapons and ammunition to rebel groups.