Questions have emerged over the fate of thousands of Islamic State prisoners in northeastern Syria after government forces seized swaths of territory long controlled by Kurdish forces who had been guarding the prisons.

After meeting with the SDF’s commander, US’s Tom Barrack said all parties agreed upholding the truce is ‘essential’.

The Kurdish-led Syrian Democratic Forces said that it asked for help from a U.S. coalition base but that it "did not intervene, despite repeated calls for intervention."

U.S. military boosts regional presence with F-15 fighter jets and USS Abraham Lincoln deployment as ISIS prison break highlights security risks amid Syria's political realignment.

As many as 60 people, including 35 children, with connections to the UK are in Syrian prisons and camps now engulfed by fighting

Chaos around prisons holding ISIS detainees in Syria is highlighting security risks for U.S. forces in the region.

"We've requested and demanded guarantees, but as always, the U.S. does not give any," the SDF's political co-chair told Newsweek.

A U.S. airstrike in northwest Syria kills al Qaeda leader Bilal Hasan al-Jasim, linked to the deaths of three Americans.