New Delhi, July 29 -- American Airlines flights which are not already in the air were grounded throughout the United States on Tuesday (local time) owing to an IT outage, as per an advisory issued by the Federal Aviation Administration (FAA).

"We're aware of a technical issue and have engaged our IT team to address it asap. We're sorry for any inconvenience," the airline said in a post on X.

Users online also complained that the airline's website and app were also crashing.

The ground stop notice issued by the FAA means that now flights cannot depart until the issue is fully resolved. The notice came amid a number of US East Coast airports experiencing delays and ground stops owing to thunderstorms.

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