Fighting between Kurdish-dominated SDF and Arab allies break out after arrest of latter's leader, opening door to possible reemergence of deadly terror group

Al-Qaeda linked attackers strike government military position, as Turkey-backed forces battle Kurds in another region and protests continue over deteriorating economy

Islamic Republic calls attack 'act of aggression,' labels Washington's presence in Syria 'illegal'; airstrike launched in response to drone attack that killed American contractor

CENTCOM says UAV conducting reconnaissance above site, which was struck last month in rocket attack attributed to pro-Iranian groups

Jihadists assault area containing a military intelligence prison housing some 200 IS inmates; two attackers were wearing explosive belts, says spokesperson for Kurdish force

Pentagon says offensive by Turkey 'would destabilize the region,' urges restraint; adds that US forces have reduced joint patrols with SDF

Turkey says child and teacher among dead after high school, house and border gate struck; rights group says Kurdish-led Syrian Democratic Forces responsible for attack

Turkish security says Syrian suspect confessed to being an agent of outlawed Kurdistan Workers' Party; minister pans US condolence message

Defense Department rejects NYT report that military covered up deaths of civilians in attack on Islamic State stronghold, says troops thought only fighters were in the area

After claiming to retake facility in Hassakeh, Kurdish group says dozens of armed jihadists are still holding out in a corner of the prison