An unknown number of U.S. service members have been killed by an explosion in Syria, NBC News reports. The troops were “conducting a routine patrol,” according to an unnamed official:
Forces were on foot in the city when they were approached at around 1 p.m. local time (6 a.m. ET) by a man wearing civilian clothing with explosives hidden underneath, the Kurdish official added.
ISIS has claimed responsibility for the attack, which comes less than a month after Donald Trump declared that “we have defeated ISIS in Syria.”