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NEW YORK – A check-in system used by American Airlines and other carriers experienced a temporary outage Friday morning, causing long lines at several airports nationwide and in other parts of the world before the issue was resolved, multiple news outlets are reporting.

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In a statement issued shortly after 5:30 a.m. EDT Friday, American Airlines said the booking system, Sabre, “had a technical issue that impacted multiple carriers, including American,” according to KHOU in Houston.

“This technical issue has been resolved,” American’s statement read. “We apologize to our customers for the inconvenience.”

The announcement came after New York’s John F. Kennedy International Airport tweeted that the system, which also is used by JetBlue, had experienced “issues” that were later resolved.

“Please allow extra time for your travel plans,” the airport warned.

Alaska Airlines posted that it was affected by the outage, while a reporter for The Australian said Virgin Australia and New South Wales-based Rex Airlines experienced problems, as well.

WFXT in Boston later obtained the following statement from Sabre:

“We confirm there has been an outage of the Sabre system, impacting several customers,” the statement read. “However, the issue is now fully resolved, and we will take all necessary measures to prevent a recurrence.”