Lorenzo Ferrigno/CNN via CNN Newsource

(CNN) — A telecommunication outage caused Federal Aviation Administration air traffic controllers in Dallas to lose radar and some communications Friday afternoon, leading to flights being stopped at the area’s airports.

After a virtual shutdown of airports across the city, some flights were allowed to resume after 3:30 p.m. CT. Operations at Dallas Fort Worth and Dallas Love Field have since returned to normal, the FAA said in a statement Saturday afternoon.

The issue stemmed from “two cut fiber optic cables,” affecting data used by radar and other systems, American Airlines said in a memo shared with CNN Saturday, citing the FAA.

The FAA said the disruption was due to “multiple failures” in a data communication service provided by a local telec

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