President Donald Trump vowed retaliation after two U.S. service members and one civilian interpreter were killed in an ISIS-linked ambush in central Syria. The attack, near Palmyra, also wounded three others and marked the first U.S. fatalities since the fall of Bashar Assad.
No group immediately claimed responsibility Sunday, but the Syrian Interior Ministry said an extremist from the Islamic State group entered the church, fired at the people there before detonating himself with an explosives vest, echoing some witness testimonies.