Air traffic control staffing issues are cascading into major delays for passengers flying in and out of the busy Newark airport outside of New York City for an unprecedented fifth day in a row.

More delays at Newark Liberty International Airport are being reported Friday, continuing a wave of late flights that has been plaguing travelers all week. Many flights out of Newark have been delayed for at least one hour Friday,

Staffing shortages at an air traffic control center have added to the effects of a runway closure, prompting United Airlines to cut flights at the hub.