Flights at Boston Logan International Airport were affected by a nationwide Federal Aviation Administration ground stop amid air traffic control communications problems, according to reports published Friday by NBC Boston and Boston.com. The available reporting did not establish when the halt would end or how many Boston flights were affected.

Transportation Secretary Sean Duffy said the communications issue involved regional air traffic control centers responsible for directing aircraft between airports across the country, Boston.com reported. That account placed the problem within the system managing flights between airports, rather than identifying a communications failure specific to Logan.

NBC Boston identified Logan as an airport affected by the federal ground stop. In a separate headline about the nationwide action, the outlet reported that the FAA cited unusual circumstances and safety as reasons for halting flights. The supplied reports offered no detailed explanation of the underlying communications problem.

The disruption put Boston within a broader national aviation interruption. Neither outlet’s supplied material provided a Logan-specific tally of delayed departures, identified affected airlines or listed individual flights. It also did not establish whether any flights had been canceled as a result of the stop.

Regional communications issue

Duffy’s description, as reported by Boston.com, is the clearest explanation in the available material of where the difficulty occurred. He identified the regional centers that direct aircraft traveling between airports. The account did not identify a particular center or say whether the problem began in one location before affecting others.

The reports described the action as a nationwide halt, not a restriction limited to Massachusetts or New England. But the material did not provide an airport-by-airport accounting, leaving the scale of the disruption at Logan unquantified beyond confirmation that flights there were affected.

The FAA’s safety rationale appeared in NBC Boston’s national headline. That headline did not detail the conditions behind the decision, and the accompanying material supplied for this story did not offer an explanation relevant to the aviation disruption. No more specific technical cause could be established from those excerpts.

Boston impact remains unclear

For Logan, the central confirmed development was its inclusion in the national flight interruption. The available accounts did not describe conditions inside terminals, report passenger totals or provide a statement from airport management about local operations during the halt.

There are also limits to the source material: The summaries accompanying both NBC Boston aviation headlines concern unrelated events. Those summaries do not substantiate additional details about the ground stop. The Boston.com summary directly addresses the communications issue and attributes that explanation to Duffy.

The supplied reporting contains no confirmed start time, duration or restoration announcement. It therefore establishes a nationwide FAA action affecting Logan, but not a completed timeline of the disruption or a verified return to normal flight operations in Boston.