The FAA says it began slowing arrivals and departures at Newark Liberty International Airport after telecommunications and equipment issues at Philadelphia TRACON, which guides aircrafts in and out of Newark.

FAA equipment failure grounded flights at Newark Liberty International Airport on Monday afternoon, causing a ground stop and major delays for departures and arrivals. Flight delays quickly spread nationwide, with some planes seen flying in holding patterns over New Jersey.

Flights around New Jersey's Newark International Airport were sent in circles on Monday afternoon after an equipment outage diverted landings and caused flight delays across the country.