According to the Syrian Observatory for Human Rights, airstrikes in the towns of Al-Rastan and Ariha kill at least 24 people, despite a temporary ceasefire being declared by the Syrian government.
Israeli airstrikes on Iranian weapons and missile depots near Damascus, Syria, kill six foreign nationals, according to the Syrian Observatory for Human Rights. The headquarters of the Syrian Army's 4th Armoured Division is also hit.
The Syrian Army continues its offensive in southern Idlib Governorate towards the key rebel-held city of Ma'arrat al-Nu'man, capturing several towns and villages, including Jarjnaz and Sarman. Around 30,000 civilians have fled the area in recent days, according to the Syrian Observatory for Human Rights.
The al-Nusra Front, an al-Qaeda affiliate, assaults the Free Syrian Army's 13th Division in Maarrat al-Nu'man, killing seven FSA fighters with 40 captured. The Syrian Observatory for Human Rights says Nusra seized anti-tank missiles, armored vehicles, a tank, and other arms from the U.S.-backed division.
The Syrian Observatory for Human Rights says that Turkey has shelled areas held by the Kurdish YPG militia group in Syria's Aleppo Governorate for the second successive day with two YPG fighters reportedly killed.
The Russian Government says Russian jets bombed Syria for the third consecutive day, hitting 12 Islamic State of Iraq and the Levant (ISIL) targets. The UK-based Syrian Observatory for Human Rights reports that ISIL has no presence in the western and northern areas struck though Al-Qaeda's Syrian affiliate al-Nusra Front does. Russian planes also bombed Raqqah, the unofficial capital of ISIL.
The Syrian Observatory for Human Rights claims that the government has used barrel bombs resulting in the deaths of 21 people in the rebel held town of Bosra in the Daraa Governorate. [http:--www.france24.com-en-20150917-barrel-bombs-kill-21-civilians-near-syrias-daraa-monitor?ns_campaign=reseaux_sociaux&ns_source=twitter&ns_mchannel=social&ns_linkname=editorial&aef_campaign_ref=partage_aef&aef_campaign_date=2015-09-17&dlvrit=66745 (AFP via France 24)]date=August 2019
The Syrian Observatory for Human Rights estimates that Syrian government air strikes on areas controlled by Islamic State in Iraq and the Levant kills 32 people. The air strikes hit a hospital in Dayr Hafir killing at least 21 people.