LOS ANGELES FedEx Corp on Wednesday said its U.S. Express deliveries could be delayed due to an overnight Federal Aviation Administration (FAA) information technology system outage.

FedEx's signature Express service uses planes to provide overnight deliveries. The company said shipments delayed due to the outage are not eligible for a refund or credit.

"Potential delays are possible for package deliveries across the U.S. with a delivery commitment of October 25, 2023," FedEx said in a service alert.

In an email to Reuters, FedEx said the IT outage at its Memphis, Tennessee, air hub was an "FAA issue."

FAA did not immediately comment on the matter.

FedEx competitor United Parcel Service (UPS), whose air hub is located in Louisville, Kentucky, told Reuters that its flights "have been operating as expected with nothing to report regarding delays."

(Reporting by Lisa Baertlein in Los Angeles and David Shepardson in Washington DC; Editing by Alexander Smith)