Washington: On Christmas Eve, American Airlines has grounded all its flights in the United States due to an unspecified technical issue, the company said. The Federal Aviation Administration has ordered the grounding of the airlines’ US flights after the carrier reported a technical issue.

The glitch has hit the entire system with millions traveling for the holiday, reported the Associated Press. “Our team is currently working to rectify this. Your continued patience is appreciated,” the airlines said in social media replies to passengers.

So far, the company has not issued a press release. More details awaited.