NEWARK, New Jersey (WABC) -- Newark Liberty International Airport was hit with multiple ground stops on Sunday amid staffing shortages in the control tower.

Arriving flights were grounded for 45 minutes until 10:45 p.m.

A similar ground stopped happened on Sunday morning, when arrivals into the airport were being limited to as few as 20 planes per hour through the afternoon, NYC Emergency Management said.

Officials say the average delay at Newark Airport was about two hours, with some flights being more than three hours late.

Overall, the airport saw over 120 flights cancelled on Sunday, with some delays spilling over into JFK International Airport and LaGuardia Airport.

Officials recommend travelers check their flight status before heading to the airport, and to also be prepared for

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