American Airlines on Tuesday said flights are resuming after the Federal Aviation Administration (FAA) issued a nationwide ground stop for all flights following a systemwide IT outage that disrupted operations across its network.

“A technology issue briefly impacted connectivity for some of our systems on Tuesday evening,” the airline said in a post on X. 

“Systems are coming back online now and flights are departing again. We put a temporary ground stop in place while our teams worked to resolve the issue. We apologize to our customers for the inconvenience.”

Earlier, the airline acknowledged the outage and said its IT team was working to restore affected systems as quickly as possible.

“We’re currently experiencing a systemwide IT outage. Our IT team is working to get everything restored as quickly as possible,” the company said. 

“Our team’s working hard to get everyone back on track asap, and we’re sorry for the inconvenience,” the air carrier added. 

The airline has not said what caused the outage.

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