The American surrendered to the Syrian Democratic Forces on or around Sept. 12.

:: An American citizen fighting for ISIS in Syria surrendered to US-backed fighters earlier this week and has been handed over to US forces, the Pentagon said on Thursday. The American surrendered to the Syrian Democratic Forces (SDF) on or around Sept. 12.

“The US citizen is being legally detained by Department of Defense personnel as a known enemy combatant,” Pentagon spokesman Major Adrian Rankine-Galloway said in a statement.

This is not the first time an American citizen fighting for the group has been detained by US allies. In June, a Virginia man who traveled to Syria to become a suicide bomber for ISIS was convicted of providing material support to the militant group.

Mohamad Jamal Khweis, 27, spent about 2-1/2 months in early 2016 traveling with Islamic State fighters in Syria and Iraq and participating in the group’s religious training. He was detained by Kurdish peshmerga forces in northern Iraq in March 2016 and turned over to US authorities.