More than 450 flights were delayed Monday causing chaos at Newark and Atlanta international airports following the weekend’s ground stop order over air traffic control failures. The Federal Aviation Administration (FAA) issued a warning that a second ground stop order was possible given the situation at Hartsfield-Jackson Atlanta International — the busiest airport in the US — which has seen more than 370 delays as of Monday afternoon,

The delays are impacting inbound flights, and passengers are advised that some departure schedules may also be affected. Airport officials have not specified the cause of the airborne delays but emphasized that the situation is being monitored and managed in coordination with air traffic control.

Newark Liberty International Airport saw a 45-minute ground stop Sunday morning after a telecommunication issue at an air traffic control facility in Philadelphia. Shanelle Kaul reports on the latest problems for the beleaguered airport.