Senior SDF official Redur Xelil says defending ISIL prisons is not a priority anymore due to the conflict with Turkey.
Turkish President Recep Tayyip Erdoğan says his country has launched a military invasion of northern and eastern Syria. The Kurdish YPG-led Syrian Democratic Forces say that Turkish fighter aircraft strike targets and "civilian areas". Syrian state television says the Turkish artillery shelling of Ras al-Ayn, al-Hasakah Governorate, is "random", and Ayn Issa, Raqqa Governorate, is also being shelled.
The U.S.-backed Syrian Democratic Forces say that they captured five foreign nationals who fought for Islamic State of Iraq and the Levant. Two are reportedly from the United States, two from Pakistan and one from Ireland.
An ISIL suicide bomber kills 14 people and wounds over 60 others at a police checkpoint near Hamid Karzai International Airport. The attack coincides with Afghan Vice President Abdul Rashid Dostum returning to Afghanistan after more than a year in exile in Turkey. Dostum and his entourage are unwounded.
Despite opposition from Turkey, President Donald Trump authorizes an arms deal with the Syrian Kurds to assist the Syrian Democratic Forces in their fight against Islamic State of Iraq and the Levant (ISIL).
Turkish jets hit Kurdish-led Syrian Democratic Forces (SDF) militia with 26 airstrikes in three recently-captured-from-ISIL villages west of al-Bab and northeast of Aleppo. The Turkish General Staff says between 160 and 200 have been killed, while the Syrian Observatory for Human Rights reports 11 dead and dozens of people wounded.