Sean Duffy said the number of flight cutbacks would fluctuate by time of day with most targeting afternoon hours when international arrivals make the airport busier.

The mounting air traffic control problems at Newark Liberty International Airport caused aviation officials to implement a ground stop for flights on Sunday morning, the third such incident in the past two weeks.

The Federal Aviation Administration said on Sunday that a new telecommunications issue at the facility that guides aircraft at Newark Liberty International Airport forced the agency to briefly slow aircraft in and out of the airport.