Three American citizens who traveled to Syria to fight alongside Kurdish forces battling the self-proclaimed Islamic State died in combat, two U.S. defense officials confirmed to the Daily Beast.

At least one is believed to be U.S. military veteran, a defense official told The Daily Beast.

According to one local report, the men were killed over the weekend and identified as William Savage, Levi Shirley and Jordan MacTaggart. Kurdish fighters mourning the men carried signs with the purported photos.

The Americans, who officials have yet to positively identify, were near the northern Syrian city of Manbij, home to a key ISIS supply route to Turkey, helping the Kurds wrest the city out of ISIS hands when they killed.

Earlier this month, Manbij fell out of ISIS control, a major loss for the terror group.

Read More- The Daily Beast

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