Syrian government airstrikes targeting residential areas in the towns of Jisr al-Shughur, Khan Shaykhun, Maar Shoreen, Hantoteen and Ain Al Bardeh in Idlib province, kill at least nine civilians and injure 14 others.
More than 72 are killed in clashes between Al-Nusra Front and Syrian government forces in Khan Tuman south of Aleppo, Syria. [http:--www.i24news.tv-en-news-international-middle-east-112298-160506-more-than-70-dead-as-syria-army-battles-jihadists-south-of-aleppo-monitor (i24 News)] [https:--web.archive.org-web-20160507124914-http:--www.voanews.com-content-jihadists-retake-syrian-village-near-aleppo-3318092.html (VOA News)] Aleppo offensive (May 2016)
A suicide bomb attack on a Syrian Army (SAA) checkpoint in the city of Homs kills at least 22 people, including around a dozen soldiers. The Islamic State of Iraq and the Levant claims responsibility for the attack.
Turkey says that it has reached an in-principle deal with the United States to give support to some elements of Syrian opposition. Over a million Syrian refugees live in Turkish territory, including many Syrian opposition figures.