Newark Liberty International Airport is under a ground delay Thursday afternoon, as travelers gear up for a busy Labor Day holiday weekend.

A full ground stop at the New Jersey airport was ordered by the Federal Aviation Administration at around noon before it was lifted about an hour later.

"The FAA cancelled the ground stop and is now slowing flights into Newark Liberty International Airport due to equipment issues that affected some radio frequencies in the Philadelphia TRACON area that handles Newark arrivals and departures," a spokesperson for the FAA said in a statement. "We are investigating the cause."

Departures and arrivals appear to be delayed by up to 90 minutes.

FAA is limiting flights to Newark Airport

The airport has been limiting its flight totals due to air traffic

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